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Allfusion erwin data modeler download free

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Read Reviews Submit a Review. One of the most compelling use cases for erwin Data Modeler lies in its connection to the increasingly important and evolving realm of data governance. With the addition of the erwin Data Intelligence Suite by Quest , you can:. Data modeling is the foundation of enterprise metadata management and any data governance or data intelligence effort. Discover and document any data from anywhere for consistency, clarity and artifact reuse across large-scale data integration, master data management, metadata management, Big Data, business intelligence and analytics initiatives — all while supporting data governance and intelligence efforts.

Nav Menu. Learn More. Benefits of the erwin data modeling tool erwin data models reduce complexity, making it easier to design, deploy and understand data sources to meet business needs. With erwin Data Modeler, users experience these benefits:. Visualization of any data from anywhere See structured or unstructured enterprise data regardless of location — in a relational or NoSQL database, a data warehouse, whether on-premises or in the cloud — within a single interface.

Agile application development Consolidate and build applications with hybrid architectures, including traditional, NoSQL and Big Data, in the cloud and on-premises.

Successful cloud adoption Automated schema engineering and deployment accelerates and ensures successful adoption of cloud platforms, like Snowflake and Microsoft Azure, including auto documenting existing schema into reusable models.

Previous Next. Standard Edition. Standard Edition Includes reusable standards such as model templates, domains, automation macros, naming and datatype standards, and the widest range of model integration and interoperability bridges.

Workgroup Edition Extends data modeling capabilities with a centralized model management repository, collaborative modeling with conflict resolution, and change management with auditing. Mart, our centralized model management repository: Provides one-click GitHub integration Is available on premises or as a pure SaaS solution. Navigator Edition Helps organizations collaborate by providing a wide range of roles with read-only access to erwin data models and metadata.

Safyr Option Extracts and converts data from ERP, CRM and other enterprise applications for accurate modeling and analysis, plus consolidates duplicate systems. Web Portal Enables self-service access to visualizations and detailed metadata within erwin data models to encourage stakeholder collaboration and increase data literacy.

Why data modeling is better with erwin erwin Data Modeler has been the most trusted name in data modeling for more than 30 years. Modern, customizable modeling environment Automate complex and time-consuming tasks for more effective database design, standardization, deployment and maintenance across all your database platforms.

Visualize complex business and technical data structures, automatically generating data models in a single, intuitive interface. Roundtrip engineering Forward- and reverse-engineering of database code and model exchange ensures efficiency, effectiveness and consistency in designing, standardizing, deploying and documenting data structures for comprehensive enterprise database management. Customer reviews. Award-winning data modeling solution. With the addition of the erwin Data Intelligence Suite by Quest , you can: Automatically harvest metadata from erwin data models and feed it into the erwin Data Catalog by Quest.

Make enterprise data assets accessible and understandable within the context of role-based views. Provide guidance on the use of data and guardrails to ensure data policies and best practices are followed. Resources View All. Master erwin DM to deliver robust and precise designs for both operational and analytical projects. This white paper discusses data modeling and its business value across the enterprise. It also discusses the most common use ca This e-book discusses harmonizing IT-oriented data management with business-led data governance to fuel an automated, high-qua Find out how to get a head start on competitors in a world where application development is indeed new again, with our e-book t Data quality, data governance and DataOps are interwoven for data-driven organizations today.

View this State of Data Gove Related products. Support and services. Get the help you need to install, configure and use erwin products. Find the right level of support to accommodate the unique needs of your organization.

WebErwin data modeler download free; Erwin data modeler download free. Most people looking for Erwin data modeler free downloaded. WebCa Allfusion Erwin Data Modeler V Edge () Retail. Nov 2, KB/s. Showing 7download results of 7for Ca Allfusion Erwin Data Modeler V Edge. . Weberwin Data Modeler. The industry-leading enterprise data modeling software Learn More erwin Data Intelligence. Integrated data catalog, data literacy and data quality . WebAllFusion ERwin Data Modeler is a Shareware software in the category Desktop developed by AllFusion ERwin Data Modeler. The latest version of AllFusion ERwin .

Agile application development Consolidate and build applications with hybrid architectures, including traditional, NoSQL and Big Data, in the cloud and on-premises. Successful cloud adoption Automated schema engineering and deployment accelerates and ensures successful adoption of cloud platforms, like Snowflake and Microsoft Azure, including auto documenting existing schema into reusable models. Previous Next.

Standard Edition. Standard Edition Includes reusable standards such as model templates, domains, automation macros, naming and datatype standards, and the widest range of model integration and interoperability bridges. Workgroup Edition Extends data modeling capabilities with a centralized model management repository, collaborative modeling with conflict resolution, and change management with auditing.

Select Stored Display Settings from the Format menu. The Stored Displays dialog opens. The New Stored Display dialog opens. Type a name for the stored display, and click OK. The New Stored Display dialog closes. Click OK to save the new stored display. The Stored Displays dialog closes. Subject Areas A subject area is a subset of objects taken from the whole pool of objects in your diagram.

By default, a new data model includes one subject area called the Main Subject Area, which includes all of the objects in the data model. But you can create others. It is important to understand that the subject areas are not copies of the data model, but are dynamic subsets of the data model. In other words, if you add members to a subject area those objects are added to the current subject area and the Main Subject Area. If you add an attribute or column to an existing entity or table, the new object is added to every subject area in which the entity or table is a member.

Subject Area Members An object that is included in a subject area is referred to as a member of a subject area. By default every object in the data model is a member of the Main Subject Area. A member can also belong to one or more other subject areas in the same data model. Create a subject area Add members to a subject area Modify the properties of a subject area Delete a subject area.

The Subject Area Editor opens. The New Subject Area dialog opens. Type a name for the new subject area, and click OK. The New Subject Area dialog closes. Click the Members tab and use the arrows to include the objects in the new subject area on the right. Spanning Neighborhoods A quick way to add members to a subject area is to click the Span Neighborhood button while using the Subject Area Editor. This opens the Spanning Neighborhood dialog.

In the Spanning Neighborhood dialog, you can specify the level of ancestors and descendants you want to automatically include in the subject area. Ancestors are the parents and grandparents of an entity.

Type a name for the new subject area in the text box. Expand the Main Subject Areas folder and decide which members you want to include in the new subject area. Drag those members from the Main Subject Area folder into the new subject area folder.

The members now appear in both subject area folders. Note: AllFusion ERwin DM keeps track of all of the objects in all of the subject areas and keeps the data model in sync with the contents of the Model Explorer.

Index Tables Just as an index in a book helps you quickly find information by listing all the pages where a particular topic is discussed, an index in a database table points to all the rows where a particular column value is stored. An index table helps to quickly locate a record in a database by pointing to a specific column and row in a table. To sequentially access the indexed file. To directly access individual records in the indexed file based on a given value for the indexed field.

Primary Key PK Index A primary key index is an index on the primary key columns in a particular table. Notes: You can have only one primary key index for each table, although each index can include multiple columns. A primary key index is unique, so the indexed columns cannot have duplicate values nor can they be null empty. For example, a customer phone number must be unique in order to locate a particular customer record.

AllFusion ERwin DM automatically creates a primary key index for each table that has one or more primary key columns. Foreign Key FK Index A foreign key index is an index on one or more foreign key columns in a particular table.

AllFusion ERwin DM automatically creates a foreign key index for each set of foreign key columns that migrate through a relationship.

Alternate Key AK Index A unique index that provides an alternative unique index in addition to the primary key index. For example, to locate a customer quickly, the primary key index may include only the customer account number. As an alternative, the alternate key index may include the customer phone number column, which must be a unique number associated with a customer record.

Duplicate values in the inversion entry index are allowed. A key group is a logical modeling tool that identifies relationships between entities that are implemented as foreign keys. You can also use key groups to identify potential primary keys or alternate keys for use in the physical model. Unique and Non-Unique Indexes Imagine a database for a video rental chain.

It probably has hundreds of thousands of customer records. But, when it is time to check out a video, it is important for each customer record to be quickly located for better customer service. If the video store clerk knows the customer account number, the customers record is found quickly because the Primary Key index references a unique customer number. Often the customer account number is not available.

But, a customer record is found quickly if the video store database has another unique index that points to the Customer Last Name and Customer Phone columns. Alternatively, the video store may also want to look up a customer record by last name, even though the search may produce multiple records. The Index Editor In the physical model, you can use the Index Editor to perform the following tasks:.

View the indexes for a table. Select the table from the list at the top of the editor. View the properties of an index.

Select the index from the list. Use the Members tab to view all the available columns in the table on the left and those columns already assigned to the index on the right. Depending on the target database, other index properties may be available. To create an index, follow these steps: 1. Open the Index on Tables Editor by following one of these methods:. Right-click a table in the diagram and select Indexes. Right-click an index located under a table in the Model Explorer and select Properties.

Click an index located under a table in the Model Explorer, and then click the Property Editor button. The New Index dialog opens. The New Index dialog closes. In the Index Editor, select the index columns from the Available Columns list and use the Arrow button to move them to the Index Members list. The Index Editor dialog closes. Click Tables to expand the folder. Right-click the Indexes folder. A new folder with a default name is added to the Indexes list.

Right-click the new Index folder. The Index Editor opens. Select the index columns from the Available Columns list and use the Arrow button to move them to the Index Members list. Forward Engineering Forward engineering is a process that generates the physical database schema from the data model. When you generate a schema, you can choose to generate:. When you forward engineer a data model, you can choose to generate a script file, which you can use to update the database using a database administration tool, or you can forward engineer by directly connecting to the database catalog.

Before you forward engineer, you can view the schema, which is a text-based representation of the database objects that will be created in the database from the script. Each time you add an object or property to your data model, AllFusion ERwin DM automatically updates the script file to reflect the change to the data model.

Preview Schema Generation To preview schema generation, follow these steps: 1. Select Open from the File menu, and click MyModel. The MyModel. Use the Model Type Indicator and switch to the Physical model. The Oracle Schema Generation dialog opens. Click the Preview button at the bottom of the dialog. The Oracle Schema Generation Preview dialog appears, similar to the following example:.

The Preview Schema screen is similar to a text editor. Edit the schema by typing directly in the editor or use the toolbar at the top of the editor to perform other common text processing functions. Click Close when you are finished previewing the schema. The target server you select determines the options that appear in the editor. To change the schema generation options, follow these steps: 1. The Schema Generation Editor opens. The left panel lists all the categories and the right panel lists all the options for the selected category.

Make your selections in the right panel of the Options tab, or click the Summary tab to view the default options. Additional Schema Generation Options A full range of options is available for generating a schema. Use these additional options for refining your output:. Check Model – You can create a Model Validation report before you forward engineer your model. The report checks for corrupt objects and reports other errors associated with correct forward engineering.

Using Option Sets – You can save the selections you make in the Options tab to an external XML file, or you can save the selections with the model. Click Save As to save your current option set. You can also share option sets with other users.

If you want to use an option set you created earlier, click Open to select the XML file. Filtering Tables – By default, all tables in your model are included in the schema generation. You can filter out selected tables for the schema generation when you click the Filter button. A selection dialog appears that lets you move selected tables out of the list of tables included in the schema generation.

Generate the Schema You can preview your schema as many times as you want. When you are satisfied with the content of the schema, you can generate it to your target server. To generate the schema, follow these steps: 1. Start the schema generation process using one of these methods:.

The Oracle Connection dialog opens. Enter a User name, Password, and Connect string. The schema generation process begins.

As the schema is generated, you receive feedback on the success or failure of the generation. When you select the Stop If Failure check box in the dialog, you can choose to Continue or Abort the generation. To fix an error found during generation, click the Abort button in the Generate Database Schema dialog, and then return to the Schema Preview dialog, where you can find and correct the source of the error. Save the Script File You can save or print your script file.

You may want to save the script as a report that contains all the queries, and success or failure messages for your schema. Follow these steps to save the script as an SQL file: 1. Click Report at the bottom of the Oracle Schema Generation dialog. The Save As dialog opens. Generate Alter Scripts Another powerful feature of the Schema Generation functionality is the capability to quickly generate alter scripts. When you make changes to your model you want to synchronize them with your database or script file.

The following example shows how to make a small change to the data model you created in an earlier exercise, and generate the alter script to your database. Return to the model MyModel. Alter the physical model in some way, for example, by adding a new table with some columns. The Alter Script Schema Generation dialog opens.

Click the Preview button to review the changes to your schema, and then click Generate. Note: If you are not connected to your target server, you are prompted to make the connection before the schema generation starts.

Select Close from the File menu when you are finished working with the Alter Script option. The Close dialog appears. Select the Save As. When you are working in the Resolve Differences dialog of the wizard, you can generate alter scripts for either model using the options on the Complete Compare secondary toolbar. Now we can create a data model by reverse engineering, which is a process that takes advantage of an existing database to speed the design of a new data model and the subsequent delivery of new systems.

Reverse Engineering When you have an existing database from which you want to create a data model, AllFusion ERwin DM lets you reverse engineer the database schema, which is converted into a graphical representation of the database structures in a new model. The process of reverse engineering saves considerable time because AllFusion ERwin DM does the work of creating a new data model directly from the database. There are two methods to begin reverse engineering:.

From the database catalog- select Reverse Engineer from the Tools menu. After you reverse engineer, you can use any of the AllFusion ERwin DM features to enhance, develop, or add design layers to the new data model.

When you select a template, consider the design layer hierarchy and where the data model that you create by reverse engineering fits in the hierarchy. For example, you may want to begin with a physical model and then derive other models from that source.

You can then use either model as a source for other models in the design layer hierarchy. Choosing the database objects and properties that you want to import Selecting physical database options Specifying whether you want AllFusion ERwin DM to infer primary keys or relationships from indexes Setting case conversion options.

The options and the object list vary depending on the database or SQL file that you intend to reverse engineer. The Reverse Engineer – Select Template dialog appears. For the purpose of this exercise, accept the default options in the remaining areas of the dialog and then click Next. A small dialog appears with text that describes the database structures that AllFusion ERwin DM is reverse engineering.

When the process ends, a new data model appears in the Diagram Window. Then, you can rearrange the diagram objects yourself. Note: When the new data model first appears, you see only the graphic boxes and relationship lines. Click Save from the File menu, and save this model as MyModel.

A message prompt appears. Click Yes to replace the existing file. This trademark technology helps you easily compare and synchronize the object properties between a data model and its related database or another data model. You work with open models in real time. When you select a model, database or script file, it opens as a model in the workplace and stays open during the compare process.

Changes made to the models during compare are automatically made to the open models. You can save your models when you end the compare session, or use other features to update the database or replace the script file.

You can use preset defaults and click Compare once to start the compare process. Save an entire compare session to an external XML file. You can reload the saved Complete Compare Session again to instantly restore your previous selections. Customize the list of objects and properties you want to participate in the compare by creating an Option Set in the Type Selection dialog.

You can save the Option Set as an external file, or with one or both of the models that participates in the compare. Use the Find functionality in the Resolve Differences dialog to search the list of displayed differences. Use the Report functionality in the Resolve Differences dialog to prepare a custom report of your Complete Compare session.

Select the models, script file, or database to compare. Select objects and properties to include in the compare process, and choose filter options. How Model Selection Works Select the models, script file, or database for the compare.

Some of the typical compare scenarios you can use are:. Compare a data model with a script or database. Compare two unrelated models. You can work with models already open in the workplace, or you can use the Complete Compare wizard to open a model, or reverse engineer a database or script file. ERWIN file, or compare to a database or script file. Move the focus in the Open Models in Memory list to choose a model already open in the workspace. It is easy to navigate the panes of the Complete Compare Wizard – click the name of the pane in the static explorer area in the wizard to display that pane.

Because the wizard is non-sequential, you can select as many or as few options as your want, and start the compare process at any time. Select a model, database, or script file for the “Left Model” in the compare.

Note: You can use the preset defaults for all the other options in the Complete Compare wizard. To accept the defaults and start the compare process, click Compare at this point. Select Objects and Properties to Compare and Choose Filter Options You can refine the compare process by applying filters and selecting the specific objects and properties you want to participate in the compare.

Click Type Selection in the navigation pane to open the Type Selection dialog. You use features in this dialog to access type filtering options. You can indicate a Compare Level to include only logical, physical, or database objects in the compare process.

For example, to filter by subject areas, triggers or ownership criteria. Alternatively you can choose specific objects from the Selected Objects tree. Clear the check box to exclude objects of that type from the compare. After you have made choices for your left model in the Left Object Selection dialog, click Right Object Selection in the navigation pane to make choices for right model. Additional filter options are available in the Advanced Options pane, for example to filter by table owner, or to apply a case-sensitive compare:.

Click the Compare button to start the Complete Compare process and display the Resolve Differences dialog. Resolve Differences The most important step in the Complete Compare process is comparing differences and determining how to resolve them. The Resolve Differences dialog is a side-by-side display that shows the:. Differences between the models, databases, or script files you selected for display in the left and right panes.

Intended resolution for each difference. Toolbars The primary and secondary toolbar give you quick access to all the compare options. When you select a row in the object or property view, the relevant toolbar options become active. Other options that help you work with the compare process include toolbar buttons to undo and redo actions, navigating the list of differences in the object and property display, finding a text string in the compare list, expanding and collapsing the tree of differences, and creating a report of the current state of the compare process.

These options are described in detail in the examples that follow. Display Filter Click a display option on the Filters toolbar to show all objects and properties in your models, or only those that do not match. Object View area View all differences on the object level. Property View area When you select a row in the Object View, you can display and compare properties for those objects in each model. Comparison Results The Complete Compare process presents the results of the compare in an object view and property view table.

Items that do not match are tagged with the Delta icon. If a property is missing from one of the models, the cell displays cross hatches. You can scan the table of differences by using the scroll bar on the right of the table, or clicking the Next Difference Nxt Diff or Previous Difference Prv Diff button on the toolbar.

The following excerpt from the compare tree illustrates a detected difference that requires resolution:. Resolve Actions You resolve differences by synchronizing properties in your left and right model. To do this, you simply move objects or properties from one model to the other. When you select the row you want to work with, click the ToLeft or ToRight button on the main toolbar, or click the smaller version of the same icon in the compare row. When items in the compare row match, no differences are displayed.

The cross hatches disappear when the object properties match. Generate Alter Scripts You can generate an alter script based on the changes made during your compare session. For example, if you are working with a database you reverse engineered to a model, you can generate an alter script that includes the changes made during the compare session. To generate an alter script click, follow these steps: 1. The Alter Script Schema Generation dialog appears. Follow the prompts to preview, print, save, and generate the schema.

Save Your Models When you start the Complete Compare wizard, your models remain open in the workplace. As you work in the Resolve Differences dialog, your open models are updated in “real-time. Click Finish in the Resolve Differences dialog to end your compare session. Note: You can make additional changes to the options in the wizard and compare again, or you can close the wizard.

Click Close in the Complete Compare Wizard to close the wizard. Note: If the models that you compared were already open in the workplace, the models remain open. Use the standard Save options to save your work before closing the models. The Close Models Prompt appears when you work with models loaded from a file, or from a database or script file. Clear the check box for models you want to keep open in the workplace.

If you select models to close, when you click OK, the Close dialog appears for each model, allowing you to save your changes. Note: If you are working with a database or script file reverse engineered using the Complete Compare wizard, you have several options to save your work.

You can save the changes in a new model, you can generate an alter script to update the database, or you can save the changes in a new script file. A simple but powerful example of the Complete Compare technology is to use Complete Compare to import and export changes between a data model and a database script file. Click Open from the File menu and locate My Model. In the Model Explorer, click the plus sign to expand Tables. To compare the differences between your open model and the SQL script you saved earlier, follow these steps: 1.

Choose Complete Compare from the Tools menu. Confirm that “MyModel. Click Left Model in the Complete Compare navigation pane. The Reverse Engineer wizard opens, and you are prompted to make reverse engineering choices. Click Next to complete the reverse engineering process and return to the Complete Compare wizard. In this example, accept the remaining defaults in the Complete Compare wizard. To start the compare process, click Compare. All retail software uses a serial number or key of some form.

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I am happy to see you really do have thousands of downloads. I just downloaded the software I needed. The service is great. Thank you and Ciao! Aria, Italy. We hope you enjoy the downloads as much as we do! We currently have , full downloads including categories such as: software, movies, games, tv, adult movies, music, ebooks, apps and much more. Right-click the Create Attribute transaction that is second from the bottom of the tree. Undo to a Selected Transaction button.

Select Undo to this point. Note: Instead of right-clicking the transaction and opening the shortcut menu, select the transaction and then click the Undo to a Selected Transaction button on the Action Log toolbar as shown in the previous graphic to perform the same action. All the transactions from the one you selected up to the top of the Action Log tree are dimmed, and are removed from the model in the Diagram Window.

Do not close your model yet. Closing your model now will end the current session of the Activity Log and you will not be able to redo the transactions you just undid. Redo to a Selected Transaction When using the Redo to a Selected Transaction feature, the transactions are restored in sequential order starting with the transaction you select and moving down the tree until all dimmed transactions are restored.

To redo a group of consecutive transactions, follow these steps: 1. Right-click the transaction that is the starting point for the redo action. For this exercise, right-click the topmost transaction in the Action Log tree in MyModel. Redo to a Selected Transaction button. Note: Instead of right-clicking the transaction and opening the shortcut menu, select the transaction and then click the Redo to a Selected Transaction button on the Action Log toolbar as shown in the previous graphic to perform the same action.

Select Redo to this point. All the transactions that were previously undone are now restored in the Action Log as well as in the model in the Diagram Window. The following table summarizes the differences between the three available features, and suggests when it is appropriate to use each one: Feature Undo Toolbar AllFusion ERwin DM Standard toolbar When to Use When you want to undo the last, single action you took.

This feature is similar to the Microsoft Windows undo feature; it lets you undo the last action taken. When you want to perform an opposite action that is not the last action you took in the current modeling session. This feature applies to the entire transaction even if you select only the object or property level node.

You can use the Undo button to undo a reverse action made in error. For some transactions, you can also reverse a reverse action. Note that you cannot perform a sequential reverse using this feature. When to Use When you want to undo sequential transactions performed in the current modeling session.

This feature lets you undo a range, or sequential grouping, of transactions at one time. You can perform a redo to selected transaction to the same group of transactions or a smaller set of the consecutive transactions in the group.

You can use this feature at any time during the current modeling session. This option generates a report that shows an activity summary of your current modeling session. This report can be helpful since the Activity Log is cleared every time you close your model.

Optional If you select the Generate on model close check box, a report is generated automatically each time before you close the model. Note: The generated report is saved in comma-delimited format. For more information about the Options dialog, see the online help.

Action Summary Reports In addition to the Action Log report, you can filter information on the Summary pane and save the information as a report using the Data Browser.

Three types of Action Summary Reports are available:. Session Summary Report – Displays the summary of changes that take place in the model. Session Summary-Details Report – Displays a detail list of changes in a model. Comparison Report – Displays the differences between the original version of the model and the current version of the model.

For more information about the Data Browser, see the online help. Select the Summary tab in the Action Log. The Summary pane opens. Click the Extended Find and Filter button. The Extended Find and Filter dialog displays. Click the Report button. The Data Browser opens. Expand the Action Summary reports folder. Select a report. Click the Execute button. The report is generated. Optional You can customize the report or print it. Save the report in. Working with Data Models In the previous chapter, you started working with a data model you created.

In this chapter, you will learn even more about data modeling concepts while continuing to enhance your data model. By using domains, you promote consistency because you can reuse a domain as many times as you like in a single or multiple data models. Domains also reduce the time spent on development and maintenance. If you change the domain, all attributes or columns associated with the domain also change.

Domain Dictionary The Domain Dictionary lists all the domains for the data model. You can arrange them hierarchically or alphabetically. The Model Explorer has the same list as the Domain Dictionary and can also be sorted in hierarchical or alphabetic order. You can create and modify both physical and logical domains using the Domain Dictionary. Some of the domain properties include:.

Domain name and column name Column datatype, default value, and valid value Domain comment or note and column comment or name User Defined Property. Note: For more information about using the Domain Dictionary, search for Domain Dictionary Dialog in the online help system. Non-inheritable properties do not migrate to child domains or attributes and columns associated with the domain because they are properties of the domain itself.

Attributes and Columns in Domains When you drag-and-drop a domain from the Model Explorer onto an entity or table, you can add a new attribute to an entity or a new column to a table. The new attribute or column inherits all the inheritable properties, including its name, from the domain. Note: Depending on the Unique Naming rules that apply to the data model, you may be prompted to rename each attribute or column that you add because the domains name is automatically assigned to each new attribute or column.

To create new domains, follow these steps: 1. Select Domain Dictionary from the Model menu. The Domain Dictionary appears. Select the parent domain, which can be any existing domain. Click New. The New Diagram dialog opens, and the parent domain that you selected is highlighted. Type a name for the new domain at the bottom of the dialog, and click OK.

By default, the physical name is automatically assigned the same name as the logical domain, but you can rename the physical domain at any time. Each tab in the Domain Dictionary has a set of related properties. To modify a domain property, follow these steps: 1. Select the domain that you want to modify. Click the Definition tab and change the properties. Click OK to save all the changes. AllFusion ERwin DM automatically updates every attribute or column that is associated with the selected domain.

Domains and Datatypes A datatype is a domain property. A datatype defines the physical properties of a column in a database such as length number of characters , type alpha or numeric , and precision decimal. By default, a new domain is assigned the same datatype as its parent domain. You can change it at any time. The available datatypes for the current model always display in the list in the Domain Dictionary.

To assign a datatype, follow these steps: 1. Select the domain. Click the Datatype tab in the Logical model or the Database tab in the Physical model.

Select the new datatype for the domain. By default, a new domain is represented by a folder icon, but you can choose a different icon to represent the domains you create. You can select any icon. You can assign the same icon or select a different icon to be inherited by the attributes or columns associated with the domain.

AllFusion ERwin DM represents a relationship as a solid or dashed line that connects two entities or two tables. Depending on the notation you choose, the symbols at either end of the line may change. If you prefer to work in the Model Explorer, you can see the parent and child relationships for each entity and table in the Model Explorer. Double-click any of the relationship folders to open the Relationship Editor.

As its name implies, an Entity-Relationship data model, uses entities and relationships to represent the logical structures that will eventually become the physical tables in a database. AllFusion ERwin DM uses a box with a horizontal line to depict an entity and solid or dashed connecting lines to depict a relationship between two entities. Other Relationship Types In addition to identifying and non-identifying relationships, you can also create other relationships in AllFusion ERwin DM, as shown in the following chart:.

Depending on the model type logical or physical and the diagram notation, the relationship tools in the toolbar vary. Before you create a relationship, consider whether you want the foreign keys to migrate to the primary key area or the non-key area of the entity or table. Relationship Lines After you create a relationship line or rearrange existing lines, the line position is saved so that routine modeling tasks, such as switching between logical and physical models with the same display level, do not result in a rearrangement of any of the relationship lines.

When you click a relationship line, the line is highlighted with a shadow. This lets you see the selected line more clearly. You can format relationship lines in your model by selecting Preferences on the Format menu and clicking the Layout tab. You can choose to perform the following actions:. Clear the Allow manual layout check box to prohibit manual layout of relationship lines.

Click this check box to allow manual reshaping of relationship lines. Click the Redraw All Relationship Lines button to shape all relationship lines automatically.

You can also choose to automatically layout the currently selected relationship line by right-clicking the line and selecting Relationship Auto Layout from the shortcut menu.

Relationship Editor After you create a relationship, you can double-click the relationship line to open the Relationship Editor. You can edit many of the relationships properties including:. Verb Phrases A verb phrase describes how two entities are related. Parent-to-child verb phrase describes how the parent is related to the child. Child-to-parent verb phrase describes how a child entity is related to a parent entity. Note: You can type parent and child verb phrases directly in the Diagram Window using on-diagram editing.

Foreign Key Migration and Unification When you create a relationship between entities, AllFusion ERwin DM automatically migrates the primary key attributes of the parent entity to the child entity. Rolenames Sometimes, unification is not the desired behavior. You may want to maintain a distinction between multiple attributes with the same name in an entity because each serves a different purpose.

In this situation, you can assign a rolename, which is similar to an alias that you assign to a foreign key. Views In a physical model, you can create a view, which is really a SQL query that is permanently stored in the database under assigned names.

Typically, a view is used to present specific database information for a target audience. In the physical model, you can use view tools in the AllFusion ERwin DM toolbox to draw the view table and connect the view relationship to a source table.

Create a customized presentation of the data stored in the database. Restrict access to data, allowing different users access to only certain rows or columns of a table. Simplify database access by creating customized structures tailored to the needs of individual users. A user can write a simple query on a view rather than a complex query on the actual database tables.

Note: For more information, search for View in the online help system. Then click in the Diagram Window. Reverse engineer an existing database. Copy a view from one model and paste it into another model. Right-click the Views folder in the Model Explorer and choose New. These display levels are useful for showing different types of information in a data model, particularly when different people and groups use the data model for their specific job in the development process. Entity Displays the name of each entity in a data model inside an entity box.

No other information displays for the entity. Attribute Displays the attributes for each entity in a data model, with the primary key attributes above the line and the non-key attributes below the line in an entity box. Primary Key Displays the primary key attributes those found above the line in an entity box for each entity in a data model. The attributes below the line are hidden, but display when you switch back to the Attribute Display Level and you can also see them in the Attribute Editor.

Definition Displays the definition for each entity in a data model. Icon If you have assigned a large bitmap to an entity, the bitmap displays when you choose Icon Level. You can assign a different bitmap to each entity in the Icon tab of the Entity Editor. The following diagram uses the same entities and illustrates each of the logical display levels: Entity.

Table Displays the name of each table in a data model inside a box. No other information displays for the table. Column Displays the columns for each table in a data model, with the primary key columns above the line and the non-key columns below the line in a box.

Comment Displays the definition for each table in a data model. Physical column order Displays the order in which each column appears in the corresponding table. The following diagram uses the same entities and illustrates each of the physical display levels:.

These options are useful for showing different types of information in the logical model:. Entity or Table Display Options You can use the entity or table display options to view information about entities and tables in a data model. Note: The Format menu changes based on whether the currently displayed model is physical or logical.

Relationship Display Option In both the logical and physical data model, you can use the display options to view the relationship properties. Create Stored Displays If you want to quickly change the graphic presentation of your data model without resetting the display options each time, you can create a stored display for each set of display options. To create a stored display, follow these steps: 1.

But you can create others. It is important to understand that the subject areas are not copies of the data model, but are dynamic subsets of the data model. In other words, if you add members to a subject area those objects are added to the current subject area and the Main Subject Area. If you add an attribute or column to an existing entity or table, the new object is added to every subject area in which the entity or table is a member.

This opens the Spanning Neighborhood dialog. In the Spanning Neighborhood dialog, you can specify the level of ancestors and descendants you want to automatically include in the subject area.

Ancestors are the parents and grandparents of an entity. Descendants are the children and grandchildren of an entity. In the Model pane, you can see the Subject Areas along with all of the other data model objects. But, if you prefer to view all of the subject areas at a glance, just switch to the Subject Areas pane by selecting the Subject Area tab.

Right-click the Subject Areas folder. Type a name for the new subject area in the text box. Expand the Main Subject Areas folder and decide which members you want to include in the new subject area.

Drag those members from the Main Subject Area folder into the new subject area folder. The members now appear in both subject area folders. Note: AllFusion ERwin DM keeps track of all of the objects in all of the subject areas and keeps the data model in sync with the contents of the Model Explorer.

To sequentially access the indexed file. To directly access individual records in the indexed file based on a given value for the indexed field. Primary Key PK Index A primary key index is an index on the primary key columns in a particular table. Notes: You can have only one primary key index for each table, although each index can include multiple columns. A primary key index is unique, so the indexed columns cannot have duplicate values nor can they be null empty.

For example, a customer phone number must be unique in order to locate a particular customer record. AllFusion ERwin DM automatically creates a primary key index for each table that has one or more primary key columns.

Foreign Key FK Index A foreign key index is an index on one or more foreign key columns in a particular table. AllFusion ERwin DM automatically creates a foreign key index for each set of foreign key columns that migrate through a relationship. Alternate Key AK Index A unique index that provides an alternative unique index in addition to the primary key index.

For example, to locate a customer quickly, the primary key index may include only the customer account number. As an alternative, the alternate key index may include the customer phone number column, which must be a unique number associated with a customer record. Duplicate values in the inversion entry index are allowed. A key group is a logical modeling tool that identifies relationships between entities that are implemented as foreign keys. You can also use key groups to identify potential primary keys or alternate keys for use in the physical model.

Unique and Non-Unique Indexes Imagine a database for a video rental chain. It probably has hundreds of thousands of customer records. But, when it is time to check out a video, it is important for each customer record to be quickly located for better customer service.

If the video store clerk knows the customer account number, the customers record is found quickly because the Primary Key index references a unique customer number. Often the customer account number is not available. But, a customer record is found quickly if the video store database has another unique index that points to the Customer Last Name and Customer Phone columns.

Alternatively, the video store may also want to look up a customer record by last name, even though the search may produce multiple records. The Index Editor In the physical model, you can use the Index Editor to perform the following tasks:.

View the indexes for a table. Select the table from the list at the top of the editor. View the properties of an index. Select the index from the list. Use the Members tab to view all the available columns in the table on the left and those columns already assigned to the index on the right.

Depending on the target database, other index properties may be available. To create an index, follow these steps: 1. Open the Index on Tables Editor by following one of these methods:. Right-click a table in the diagram and select Indexes. Right-click an index located under a table in the Model Explorer and select Properties. Click an index located under a table in the Model Explorer, and then click the Property Editor button.

The New Index dialog opens. The New Index dialog closes. In the Index Editor, select the index columns from the Available Columns list and use the Arrow button to move them to the Index Members list. The Index Editor dialog closes. Click Tables to expand the folder. Right-click the Indexes folder. A new folder with a default name is added to the Indexes list.

Before you forward engineer, you can view the schema, which is a text-based representation of the database objects that will be created in the database from the script.

Each time you add an object or property to your data model, AllFusion ERwin DM automatically updates the script file to reflect the change to the data model.

Setting an Owner Override – Use the Owner Override dialog to set a global name override, or a name override for other physical objects relevant to your target server, such as tables, views, and triggers. Generate the Schema You can preview your schema as many times as you want. When you are satisfied with the content of the schema, you can generate it to your target server.

To generate the schema, follow these steps: 1. Start the schema generation process using one of these methods:. The Oracle Connection dialog opens. Enter a User name, Password, and Connect string. The schema generation process begins. As the schema is generated, you receive feedback on the success or failure of the generation. When you select the Stop If Failure check box in the dialog, you can choose to Continue or Abort the generation.

To fix an error found during generation, click the Abort button in the Generate Database Schema dialog, and then return to the Schema Preview dialog, where you can find and correct the source of the error.

Save the Script File You can save or print your script file. You may want to save the script as a report that contains all the queries, and success or failure messages for your schema. Follow these steps to save the script as an SQL file: 1. Click Report at the bottom of the Oracle Schema Generation dialog. The Save As dialog opens. Generate Alter Scripts Another powerful feature of the Schema Generation functionality is the capability to quickly generate alter scripts.

When you make changes to your model you want to synchronize them with your database or script file. The following example shows how to make a small change to the data model you created in an earlier exercise, and generate the alter script to your database. Return to the model MyModel.

Alter the physical model in some way, for example, by adding a new table with some columns. The Alter Script Schema Generation dialog opens. Click the Preview button to review the changes to your schema, and then click Generate.

Note: If you are not connected to your target server, you are prompted to make the connection before the schema generation starts.

There are two methods to begin reverse engineering:. From the database catalog- select Reverse Engineer from the Tools menu. After you reverse engineer, you can use any of the AllFusion ERwin DM features to enhance, develop, or add design layers to the new data model. When you select a template, consider the design layer hierarchy and where the data model that you create by reverse engineering fits in the hierarchy.

For example, you may want to begin with a physical model and then derive other models from that source. You can then use either model as a source for other models in the design layer hierarchy.

Choosing the database objects and properties that you want to import Selecting physical database options Specifying whether you want AllFusion ERwin DM to infer primary keys or relationships from indexes Setting case conversion options. The options and the object list vary depending on the database or SQL file that you intend to reverse engineer.

The Reverse Engineer – Select Template dialog appears. For the purpose of this exercise, accept the default options in the remaining areas of the dialog and then click Next. A small dialog appears with text that describes the database structures that AllFusion ERwin DM is reverse engineering. When the process ends, a new data model appears in the Diagram Window.

This trademark technology helps you easily compare and synchronize the object properties between a data model and its related database or another data model. You work with open models in real time. When you select a model, database or script file, it opens as a model in the workplace and stays open during the compare process. Changes made to the models during compare are automatically made to the open models. You can save your models when you end the compare session, or use other features to update the database or replace the script file.

Screens in the non-sequential wizard allow you to quickly perform a simple compare, or set up the parameters for a complex compare. You move through the wizard using a navigation tool displayed in a static explorer window. You can use preset defaults and click Compare once to start the compare process. Save an entire compare session to an external XML file.

You can reload the saved Complete Compare Session again to instantly restore your previous selections. Customize the list of objects and properties you want to participate in the compare by creating an Option Set in the Type Selection dialog.

Use the Report functionality in the Resolve Differences dialog to prepare a custom report of your Complete Compare session.

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Chapter 2: Overview and Installation Overview Set Print Margins Find Dialog Stored Display Tabs Subject Areas Subject Area Members The Subject Area Editor Subject Areas in the Model Explorer Create Subject Areas in the Model Explorer Index Tables Types of Indexes Unique and Non-Unique Indexes The Index Cree Create an Index in the Index Editor Create an Index in the Model Explorer Forward Engineering Preview Schema Generation Change Schema Generation Options Alltusion Schema Generation Options Emu nds pc the Schema Save the Script File Generate Alter Scripts Resolve Actions Eewin file.

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Your product CD contains instructional documents that showcase your software and provide detailed explanations about the products comprehensive, feature-rich components. Both files are automatically installed with the program and can be invoked from the Start menu.

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Overview AllFusion ERwin DM is a powerful database design tool that combines a Windows-based graphical user interface with entityrelationship ER diagramming tools, and numerous innovative features.

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This enables you to forward engineer this physical data model and automatically generate physical database structures to daa system catalog. In addition, the groundbreaking Complete Compare technology automates model and database synchronization by allowing you to compare the model with the database, displaying, and analyzing the differences. This enables you to selectively move the differences into the model or generate them into the database. Since AllFusion ERwin DM is installed to a new folder, you can continue to work with the earlier version, if you have sufficient disc space on your PC for both versions.

Insert the installation CD in the CD drive. If Wllfusion is enabled, you will be prompted to привожу ссылку. If autorun is disabled, click on the CD and double-click on Setup. A License Agreement appears for you to review. Select the option to accept the terms as described in the License Agreement and continue. Click Print to print the license agreement. Click Next.

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Mart, our centralized model management repository: Provides one-click GitHub integration Is available on premises or as a pure SaaS solution. Navigator Edition Helps organizations collaborate by providing a wide range of roles with read-only access to erwin data models and metadata. Safyr Option Extracts and converts data from ERP, CRM and other enterprise applications for accurate modeling and analysis, plus consolidates duplicate systems. Web Portal Enables self-service access to visualizations and detailed metadata within erwin data models to encourage stakeholder collaboration and increase data literacy.

Roundtrip engineering Forward- and reverse-engineering of database code and model exchange ensures efficiency, effectiveness and consistency in designing, standardizing, deploying and documenting data structures for comprehensive enterprise database management.

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Right-click the Subject Areas node. An edit box appears at the bottom of the list. Type the name of the new subject area in the box. Click outside the text box. The new subject area is named. To add members to a new subject area, drag entities or tables from the Main Subject Area into the new subject area. Note: Subject area members just reference the objects in the Main Subject Area, so changes automatically apply to an object in every subject area in which it is a member.

Action Log The Action Log works in real time so you can make modeling decisions during your current session rather than having to wait until you save the model to review changes. The Action Log lets you determine the best way to work. As you work on the graphical view of a model in the Diagram Window, you can view the transaction information in the Action Log.

As you make changes to your model, the Action log is updated in real time. For example, if you create an entity in your model, the Action Log reflects this change. Changes are only viewable in the Action Log during your current modeling session. Each new session begins with an empty Action Log. When you close the model, the Action Log is cleared.

Before closing your model, however, you can generate a report that lets you view all the changes made during the current session. The type of objects that appear in the Action Log is based on the display mode you are using. In other words, if you are working with a logical model, then only logical objects appear.

If you are working with a physical model, then only physical objects appear. The Action Log lets you search for every transaction and filter by type of change so that you can easily find a specific transaction or a set of transactions.

This feature is particularly helpful when working with large models. You can switch to a different pane by clicking the tab at the bottom of the Action Log. Select the Details tab to see every change transaction made to a model, or select the Summary tab to see the net result of changes made to a model. Note: A transaction is a single unit of work that is not divisible into smaller components.

The Action Log lets you navigate through the transaction tree using the Details pane or the Summary pane. Details Pane The Details pane shows all the changes you make to a model during the current session.

Changes appear in the Details pane with the most recent transaction at the top of the tree, and the first transaction at the bottom of the tree. You can either expand or collapse each transaction. The toolbar on the Details pane lets you reverse a transaction, find a transaction, view property details, and undo and redo to a selected transaction while working in the current session.

Summary Pane The Summary pane displays the net result of changes made to the model during the current session. It provides a filtered view of all the actions you perform on the model during the current session so that unnecessary tree information is minimized, which is especially helpful when you are working with large models. The Session Summary node is the top-level node in the tree.

All changes you make to the model at the object level and property level appear below the Session Summary node in the tree. While the top-level nodes in the Details pane are transactions, the Summary pane has only one top-level node with changes appearing below it. The Extended Find and Filter feature is only available in the Summary pane.

Action Log Tasks In addition to viewing the detail and summary transactions, the Action Log provides a range of useful features that help you easily perform the following actions:. Locate text within a transaction, object, or property using the Find feature. Use the Extended Find and Filter feature to locate, filter, and report on the results of your search. This feature is available only in the Summary pane. View old and new details relating to a property transaction using the Property Details feature.

Reverse a transaction. This feature is available only in the Details pane. Undo a group of sequential transactions. Redo a group of sequential transactions. This shortcut menu lists the options available based on the actions you performed prior to opening the shortcut menu.

Find Dialog The Action Log Find dialog lets you search for specific text at the transaction level, object level, or property level. This option is available on both the Details and Summary panes.

By default, the search includes the entire tree, starting from the current selection point. If there is no current selection point, then the top of the tree is used as the starting point.

If the search did not start at the top node, the search wraps to the beginning of the tree after reaching the end. Locate Text To begin searching, follow these steps: 1. Click Find on the Action Log toolbar. The Find dialog opens. Enter the text you want to search for in the Find what text box. Optional Select the Transaction, Object, or Property check box to narrow your search.

Note: Since there are no transaction nodes in the Summary pane, the Transaction search option is not applicable to that pane. Match case check box if you want to search on casesensitive text Match whole word check box if you want to search for the entire text string Search up check box if you want to search for the text from the bottom up.

Click Find Next. The next occurrence of text displays. Click Cancel when you are finished searching. The Find dialog closes. Extended Find and Filter The Extended Find and Filter feature lets you set find and filter criteria, view property changes, and use the reporting function of the Data Browser. This feature is available only on the Summary pane of the Action Log.

When the Extended Find and Filter dialog opens, it provides a snapshot of the Summary pane and lets you filter the information that displays so you can easily find the information you want to report on. Use the Report button on the toolbar to open the Data Browser dialog, where you can generate several different reports for the information that displays. The Extended Find and Filter dialog opens. Click Find on the toolbar. The Find Criteria dialog opens.

Select which Properties, Categories, and Classes you want to find. These options let you filter the information that displays. Click Find to start the search. The Find Criteria dialog closes. Click the Find Next button on the Extended Find and Filter toolbar to find the next occurrence of what you are searching for.

Click Close. The Extended Find and Filter dialog closes. View Property Details When you want to view the old and new properties for a property transaction, use the Property Details feature. To view the details of a property transaction, follow these steps: 1.

Select a property node. Note: You may need to expand the transactions in the Details pane or Summary pane before you can select the property node. Click the Property Details button. The Property Change Details dialog opens, showing the original value of the property along with the current value of the property.

Click the Close button when you are finished viewing the property details. The Property Change Details dialog closes. This feature undoes one change at a time, and is reflected in the Action Log by a dimmed transaction. This feature restores one change at a time. Reverse a Transaction The Reverse feature in the Action Log lets you perform an opposite action on most entries that appear during the current modeling session.

When you reverse a transaction, the model reflects the changes made to the Action Log. This feature is only available on the Details pane, and does not sequentially reverse actions. To reverse the transactions in Entity One only, select it and click the Reverse button. Use the Action Log to verify that only the transactions you want to Reverse are reversed, and that there were no side effects. Note: If you had used the Undo to Selected Transaction feature described in the following sections instead of Reverse, all of the transactions in Entity One and in Entity Two would have been removed because Undo to Selected Transaction feature reverses all the transactions above the selected transaction.

Depending on how complex your model is, AllFusion ERwin DM attempts to restore the model to its best state when using the Reverse feature. Use the Activity Log to determine whether your transaction has been properly reversed.

Reverse applies to the entire transaction even if you select only the object or property level node. Perform a Reverse Transaction To reverse a transaction, follow these steps: 1. Select the Details tab in the Action Log. Select a node in the tree containing an action that you want to reverse.

Note: You cannot perform a reverse action on the topmost node in the tree. Use the Undo feature instead. You also cannot reverse the transaction in which the model was created – this transaction is marked with the pin icon.

Click Reverse on the Action Log toolbar. The opposite action occurs. Undo and Redo to Selected Transaction The Undo to Selected Transaction feature in the Action Log lets you undo an entire range, or a sequential group, of transactions at the same time. Conversely, the Redo to Selected Transaction feature lets you restore a sequential group of transactions. Note: To undo to a selected transaction or redo to a selected transaction, you must be in the Details pane in the Action Log.

As you create transactions on your model, each one moves the previous transaction down the tree in the Action Log, with the first transaction always appearing at the bottom of the tree.

When you want to undo a range of consecutive transactions, only those transactions above the one you select are undone. To redo a range of transactions, only those transactions below the one you select are redone. After performing an undo to selected transaction, you will not be able to redo these transactions once you perform a new action, since the new action clears the redo stack.

Undo to a Selected Transaction When using the Undo to a Selected Transaction feature, the transactions are undone in sequential order, starting with the transaction you select and ending with the latest transaction at the top of the tree.

To undo a group of sequential transactions, follow these steps: Note: For this exercise, you need to create transactions in the model so that you can undo them. Open MyModel. Add the following attributes to the Customer entity:. Optional Expand all the transactions by clicking the plus sign next to each one. Right-click the Create Attribute transaction that is second from the bottom of the tree.

Undo to a Selected Transaction button. Select Undo to this point. Note: Instead of right-clicking the transaction and opening the shortcut menu, select the transaction and then click the Undo to a Selected Transaction button on the Action Log toolbar as shown in the previous graphic to perform the same action.

All the transactions from the one you selected up to the top of the Action Log tree are dimmed, and are removed from the model in the Diagram Window. Do not close your model yet. Closing your model now will end the current session of the Activity Log and you will not be able to redo the transactions you just undid. Redo to a Selected Transaction When using the Redo to a Selected Transaction feature, the transactions are restored in sequential order starting with the transaction you select and moving down the tree until all dimmed transactions are restored.

Select Redo to this point. All the transactions that were previously undone are now restored in the Action Log as well as in the model in the Diagram Window.

The following table summarizes the differences between the three available features, and suggests when it is appropriate to use each one: Feature Undo Toolbar AllFusion ERwin DM Standard toolbar When to Use When you want to undo the last, single action you took.

Note that you cannot perform a sequential reverse using this feature. When to Use When you want to undo sequential transactions performed in the current modeling session. This feature lets you undo a range, or sequential grouping, of transactions at one time. You can perform a redo to selected transaction to the same group of transactions or a smaller set of the consecutive transactions in the group.

To generate an Action Log report for your current modeling session, follow these steps: 1. Select Options from the Tools menu. The Options dialog appears. Enter the full path in the Activity Summary section of the dialog where you want to save the report. Optional If you select the Generate on model close check box, a report is generated automatically each time before you close the model.

Note: The generated report is saved in comma-delimited format. For more information about the Options dialog, see the online help. Action Summary Reports In addition to the Action Log report, you can filter information on the Summary pane and save the information as a report using the Data Browser.

The Data Browser opens. Expand the Action Summary reports folder. Select a report. Click the Execute button. The report is generated. Optional You can customize the report or print it. Save the report in. Working with Data Models In the previous chapter, you started working with a data model you created.

If you change the domain, all attributes or columns associated with the domain also change. Domain Dictionary The Domain Dictionary lists all the domains for the data model.

You can arrange them hierarchically or alphabetically. The Model Explorer has the same list as the Domain Dictionary and can also be sorted in hierarchical or alphabetic order. You can create and modify both physical and logical domains using the Domain Dictionary. Some of the domain properties include:.

Non-inheritable properties do not migrate to child domains or attributes and columns associated with the domain because they are properties of the domain itself.

Inheritable properties do migrate to child domains and to the attributes and columns associated with the domain. The inheritable and non-inheritable domain name properties appear on the General tab for a Logical model. Attributes and Columns in Domains When you drag-and-drop a domain from the Model Explorer onto an entity or table, you can add a new attribute to an entity or a new column to a table.

The new attribute or column inherits all the inheritable properties, including its name, from the domain. Note: Depending on the Unique Naming rules that apply to the data model, you may be prompted to rename each attribute or column that you add because the domains name is automatically assigned to each new attribute or column.

Type a name for the new domain at the bottom of the dialog, and click OK. By default, the physical name is automatically assigned the same name as the logical domain, but you can rename the physical domain at any time. Each tab in the Domain Dictionary has a set of related properties. To modify a domain property, follow these steps: 1. Select the domain that you want to modify. Click the Definition tab and change the properties. Click OK to save all the changes.

AllFusion ERwin DM automatically updates every attribute or column that is associated with the selected domain. Domains and Datatypes A datatype is a domain property. A datatype defines the physical properties of a column in a database such as length number of characters , type alpha or numeric , and precision decimal. By default, a new domain is assigned the same datatype as its parent domain.

You can change it at any time. The available datatypes for the current model always display in the list in the Domain Dictionary. To assign a datatype, follow these steps: 1. Select the domain. Click the Datatype tab in the Logical model or the Database tab in the Physical model. Select the new datatype for the domain.

By default, a new domain is represented by a folder icon, but you can choose a different icon to represent the domains you create. You can select any icon.

You can assign the same icon or select a different icon to be inherited by the attributes or columns associated with the domain. AllFusion ERwin DM represents a relationship as a solid or dashed line that connects two entities or two tables. Depending on the notation you choose, the symbols at either end of the line may change. If you prefer to work in the Model Explorer, you can see the parent and child relationships for each entity and table in the Model Explorer.

Double-click any of the relationship folders to open the Relationship Editor. As its name implies, an Entity-Relationship data model, uses entities and relationships to represent the logical structures that will eventually become the physical tables in a database.

AllFusion ERwin DM uses a box with a horizontal line to depict an entity and solid or dashed connecting lines to depict a relationship between two entities. Other Relationship Types In addition to identifying and non-identifying relationships, you can also create other relationships in AllFusion ERwin DM, as shown in the following chart:. Depending on the model type logical or physical and the diagram notation, the relationship tools in the toolbar vary. Before you create a relationship, consider whether you want the foreign keys to migrate to the primary key area or the non-key area of the entity or table.

Relationship Lines After you create a relationship line or rearrange existing lines, the line position is saved so that routine modeling tasks, such as switching between logical and physical models with the same display level, do not result in a rearrangement of any of the relationship lines. When you click a relationship line, the line is highlighted with a shadow. This lets you see the selected line more clearly. You can format relationship lines in your model by selecting Preferences on the Format menu and clicking the Layout tab.

You can choose to perform the following actions:. Clear the Allow manual layout check box to prohibit manual layout of relationship lines. Click this check box to allow manual reshaping of relationship lines. Click the Redraw All Relationship Lines button to shape all relationship lines automatically. You can also choose to automatically layout the currently selected relationship line by right-clicking the line and selecting Relationship Auto Layout from the shortcut menu.

Views In a physical model, you can create a view, which is really a SQL query that is permanently stored in the database under assigned names. Typically, a view is used to present specific database information for a target audience. In the physical model, you can use view tools in the AllFusion ERwin DM toolbox to draw the view table and connect the view relationship to a source table.

Then click in the Diagram Window. Reverse engineer an existing database. Copy a view from one model and paste it into another model. Right-click the Views folder in the Model Explorer and choose New. These display levels are useful for showing different types of information in a data model, particularly when different people and groups use the data model for their specific job in the development process.

Entity Displays the name of each entity in a data model inside an entity box. No other information displays for the entity. Attribute Displays the attributes for each entity in a data model, with the primary key attributes above the line and the non-key attributes below the line in an entity box. Primary Key Displays the primary key attributes those found above the line in an entity box for each entity in a data model.

The attributes below the line are hidden, but display when you switch back to the Attribute Display Level and you can also see them in the Attribute Editor. Definition Displays the definition for each entity in a data model. Icon If you have assigned a large bitmap to an entity, the bitmap displays when you choose Icon Level.

You can assign a different bitmap to each entity in the Icon tab of the Entity Editor. The following diagram uses the same entities and illustrates each of the logical display levels: Entity.

Physical column order Displays the order in which each column appears in the corresponding table. The following diagram uses the same entities and illustrates each of the physical display levels:. These options are useful for showing different types of information in the logical model:. Entity or Table Display Options You can use the entity or table display options to view information about entities and tables in a data model.

Note: The Format menu changes based on whether the currently displayed model is physical or logical. Relationship Display Option In both the logical and physical data model, you can use the display options to view the relationship properties.

Create Stored Displays If you want to quickly change the graphic presentation of your data model without resetting the display options each time, you can create a stored display for each set of display options. To create a stored display, follow these steps: 1. Select Stored Display Settings from the Format menu.

The Stored Displays dialog opens. The New Stored Display dialog opens. Type a name for the stored display, and click OK. The New Stored Display dialog closes. Click OK to save the new stored display. The Stored Displays dialog closes. Subject Areas A subject area is a subset of objects taken from the whole pool of objects in your diagram. By default, a new data model includes one subject area called the Main Subject Area, which includes all of the objects in the data model.

Type a name for the new subject area, and click OK. The New Subject Area dialog closes. Click the Members tab and use the arrows to include the objects in the new subject area on the right. Spanning Neighborhoods A quick way to add members to a subject area is to click the Span Neighborhood button while using the Subject Area Editor.

This opens the Spanning Neighborhood dialog. In the Spanning Neighborhood dialog, you can specify the level of ancestors and descendants you want to automatically include in the subject area. Ancestors are the parents and grandparents of an entity.

Descendants are the children and grandchildren of an entity. In the Model pane, you can see the Subject Areas along with all of the other data model objects. But, if you prefer to view all of the subject areas at a glance, just switch to the Subject Areas pane by selecting the Subject Area tab. Right-click the Subject Areas folder. Type a name for the new subject area in the text box. Expand the Main Subject Areas folder and decide which members you want to include in the new subject area.

A key group is a logical modeling tool that identifies relationships between entities that are implemented as foreign keys. You can also use key groups to identify potential primary keys or alternate keys for use in the physical model.

The Index Editor In the physical model, you can use the Index Editor to perform the following tasks:. View the indexes for a table. Select the table from the list at the top of the editor. View the properties of an index.

The Index Editor dialog closes. Click Tables to expand the folder. Right-click the Indexes folder. A new folder with a default name is added to the Indexes list. Right-click the new Index folder. The Index Editor opens. Select the index columns from the Available Columns list and use the Arrow button to move them to the Index Members list.

Forward Engineering Forward engineering is a process that generates the physical database schema from the data model. When you generate a schema, you can choose to generate:. When you forward engineer a data model, you can choose to generate a script file, which you can use to update the database using a database administration tool, or you can forward engineer by directly connecting to the database catalog.

To change the schema generation options, follow these steps: 1. The Schema Generation Editor opens. The left panel lists all the categories and the right panel lists all the options for the selected category. Make your selections in the right panel of the Options tab, or click the Summary tab to view the default options.

Additional Schema Generation Options A full range of options is available for generating a schema. Use these additional options for refining your output:. Check Model – You can create a Model Validation report before you forward engineer your model. The report checks for corrupt objects and reports other errors associated with correct forward engineering. Using Option Sets – You can save the selections you make in the Options tab to an external XML file, or you can save the selections with the model.

Click Save As to save your current option set. You can also share option sets with other users. If you want to use an option set you created earlier, click Open to select the XML file. Filtering Tables – By default, all tables in your model are included in the schema generation. You can filter out selected tables for the schema generation when you click the Filter button.

A selection dialog appears that lets you move selected tables out of the list of tables included in the schema generation. Setting an Owner Override – Use the Owner Override dialog to set a global name override, or a name override for other physical objects relevant to your target server, such as tables, views, and triggers. Generate the Schema You can preview your schema as many times as you want. When you are satisfied with the content of the schema, you can generate it to your target server.

When you select the Stop If Failure check box in the dialog, you can choose to Continue or Abort the generation. To fix an error found during generation, click the Abort button in the Generate Database Schema dialog, and then return to the Schema Preview dialog, where you can find and correct the source of the error.

Save the Script File You can save or print your script file. You may want to save the script as a report that contains all the queries, and success or failure messages for your schema.

Follow these steps to save the script as an SQL file: 1. Click Report at the bottom of the Oracle Schema Generation dialog. The Save As dialog opens. Generate Alter Scripts Another powerful feature of the Schema Generation functionality is the capability to quickly generate alter scripts. When you make changes to your model you want to synchronize them with your database or script file.

Note: If you are not connected to your target server, you are prompted to make the connection before the schema generation starts. Select Close from the File menu when you are finished working with the Alter Script option.

The Close dialog appears. Select the Save As. When you are working in the Resolve Differences dialog of the wizard, you can generate alter scripts for either model using the options on the Complete Compare secondary toolbar. Now we can create a data model by reverse engineering, which is a process that takes advantage of an existing database to speed the design of a new data model and the subsequent delivery of new systems. Reverse Engineering When you have an existing database from which you want to create a data model, AllFusion ERwin DM lets you reverse engineer the database schema, which is converted into a graphical representation of the database structures in a new model.

The process of reverse engineering saves considerable time because AllFusion ERwin DM does the work of creating a new data model directly from the database.

Then, you can rearrange the diagram objects yourself. Note: When the new data model first appears, you see only the graphic boxes and relationship lines. Click Save from the File menu, and save this model as MyModel. A message prompt appears. Click Yes to replace the existing file. This trademark technology helps you easily compare and synchronize the object properties between a data model and its related database or another data model.

You work with open models in real time. When you select a model, database or script file, it opens as a model in the workplace and stays open during the compare process. Changes made to the models during compare are automatically made to the open models.

You can save your models when you end the compare session, or use other features to update the database or replace the script file. Screens in the non-sequential wizard allow you to quickly perform a simple compare, or set up the parameters for a complex compare. You move through the wizard using a navigation tool displayed in a static explorer window.

You can use preset defaults and click Compare once to start the compare process. Save an entire compare session to an external XML file.

How Model Selection Works Select the models, script file, or database for the compare. Some of the typical compare scenarios you can use are:. Compare a data model with a script or database. Compare two unrelated models. You can work with models already open in the workplace, or you can use the Complete Compare wizard to open a model, or reverse engineer a database or script file.

ERWIN file, or compare to a database or script file. Move the focus in the Open Models in Memory list to choose a model already open in the workspace. It is easy to navigate the panes of the Complete Compare Wizard – click the name of the pane in the static explorer area in the wizard to display that pane. Because the wizard is non-sequential, you can select as many or as few options as your want, and start the compare process at any time.

Select a model, database, or script file for the “Left Model” in the compare. Note: You can use the preset defaults for all the other options in the Complete Compare wizard. To accept the defaults and start the compare process, click Compare at this point. Select Objects and Properties to Compare and Choose Filter Options You can refine the compare process by applying filters and selecting the specific objects and properties you want to participate in the compare.

You can use one of the default filters, or create a customized Option Set of objects and properties. You can save an option set to an external file and share it with other modelers. In the Choose Objects Using Sets window you can apply preset choices for common filter selections. For example, to filter by subject areas, triggers or ownership criteria. Alternatively you can choose specific objects from the Selected Objects tree.

Clear the check box to exclude objects of that type from the compare. After you have made choices for your left model in the Left Object Selection dialog, click Right Object Selection in the navigation pane to make choices for right model.

Additional filter options are available in the Advanced Options pane, for example to filter by table owner, or to apply a case-sensitive compare:. Click the Compare button to start the Complete Compare process and display the Resolve Differences dialog.

Resolve Differences The most important step in the Complete Compare process is comparing differences and determining how to resolve them. The Resolve Differences dialog is a side-by-side display that shows the:.

Differences between the models, databases, or script files you selected for display in the left and right panes. Intended resolution for each difference. Toolbars The primary and secondary toolbar give you quick access to all the compare options.

When you select a row in the object or property view, the relevant toolbar options become active. Other options that help you work with the compare process include toolbar buttons to undo and redo actions, navigating the list of differences in the object and property display, finding a text string in the compare list, expanding and collapsing the tree of differences, and creating a report of the current state of the compare process.

Object View area View all differences on the object level. Property View area When you select a row in the Object View, you can display and compare properties for those objects in each model.

Comparison Results The Complete Compare process presents the results of the compare in an object view and property view table. Items that do not match are tagged with the Delta icon. If a property is missing from one of the models, the cell displays cross hatches.

You can scan the table of differences by using the scroll bar on the right of the table, or clicking the Next Difference Nxt Diff or Previous Difference Prv Diff button on the toolbar. The following excerpt from the compare tree illustrates a detected difference that requires resolution:.

Resolve Actions You resolve differences by synchronizing properties in your left and right model. To do this, you simply move objects or properties from one model to the other. When you select the row you want to work with, click the ToLeft or ToRight button on the main toolbar, or click the smaller version of the same icon in the compare row. When items in the compare row match, no differences are displayed.

The Alter Script Schema Generation dialog appears.

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