Generating Other Models from an OOM

You can generate conceptual and physical data models and XML models from an OOM.

The following table details how OOM objects are generated to other models:

OOM	CDM	PDM	XSM
Domain	Domain	Domain	Simple Type
Class (Persistent and Generate check boxes selected).	Entity	Table (The cardinality of a class becomes the number of records of a table.)	Element
Abstract class	Entity	Table	Complex type
Attribute (Persistent check box selected)	Attribute	Column	Attribute or element (see generation options)
Identifier	Identifier	Identifier	Key
Composition	-	-	New level in the element hierarchy
Operation with <<storedProcedure>> stereotype (parent class generated as a table)	-	Stored procedure attached to the table, with the operation body as a body in the procedure definition.	-
Operation with <<storedFunction>> stereotype (parent class generated as a table)	-	Stored function attached to the table, with the operation body as a body in the function definition.	-
Association	Relationship or association	Table (if many-to-many multiplicity) or reference. Role names become migrated foreign keys.	KeyRef constraints
Association class	Entity/relationship notation: entity with two associations. Merise notation: association, and two association links	A table and two associations between the end points of the association class	-
Dependency	-	-	-
Realization	-	-	-
Generalization	Inheritance	Reference	Complex type derivation (XSD) or attribute migration to child element (DTD)

Select Tools, and then one of the following to open the appropriate Model Generation Options Window:
- Generate Conceptual Data Model... Ctrl+Shift+C - For example, to translate OOM classes into CDM entities. You will then be able to further refine your model and eventually generate a Physical Data Model (PDM) from the CDM.
- Generate Physical Data Model... Ctrl+Shift+P - For example, to translate the design of your system to your database. This allows you to model the objects in the world they live in and to automate the translation to database tables and columns.
- Generate Object-Oriented Model... Ctrl+Shift+O - For example, to transform an analytical OOM (designed with the Analysis object language) to implementation OOMs designed for Java, C#, and any other of the object languages supported by PowerDesigner.
- Generate XML Model... Ctrl+Shift+M - For example, to generate a message format from your class structure.
On the General tab, select a radio button to generate a new or update an existing model, and complete the appropriate options.
[optional] Click the Detail tab and set any appropriate options. We recommend that you select the Check model checkbox to check the model for errors and warnings before generation.
[optional] Click the Target Models tab and specify the target models for any generated shortcuts.
[optional] Click the Selection tab and select or deselect objects to generate.
Click OK to begin generation.

Note: For detailed information about the options available on the various tabs of the Generation window, see Core Features Guide > Linking and Synchronizing Models > Generating Models and Model Objects.

Managing Object Persistence During Generation of Data Models
Developers use object-oriented programming languages to develop business objects that will be stored in a database. PowerDesigner provides various properties to give you precise control over the generation of persistent objects into a data model.
Managing Persistence for Generalizations
You can control the generation of classes connected by a generalization link into CDM entities or PDM tables using the Generate table and Migrate columns options in the Persistent groupbox on the Detail tab.
Managing Persistence for Complex Data Types
When you specify a class as the data type of an attribute, you can control its generation to a CDM or PDM using the Generate table, Value Type and Generate ADT (PDM only) options in the Persistent groupbox on the Detail tab.
Customizing XSM Generation for Individual Objects
When generating an XSM from a PDM or OOM, you can specify global generation options to generate tables/classes as elements with or without complex types and columns/attributes as elements or attributes. You can override these options for individual objects by attaching the PDM XML Generation or OOM XML Generation extension to your source model and selecting from their XML generation options.

Parent topic: Building OOMs