ER/Studio - Embarcadero Technologies Product Documentation

USING ER/STUDIO > CREATING AND WORKING WITH DATA MODELS
Mapping Datatypes Between Describe and ER/Studio
The ER/Studio Describe integration includes default mappings that are displayed in the ER/Studio - Describe
Integration Advanced Setup - Datatypes tab. You can add, change, or delete mappings, import mappings from an XML
file, or import a Data Dictionary and then save the new mappings in another datatype mapping file for later use. You
cannot modify the default datatypes file; it is read-only.
1 Click File > Describe Collaboration > Import from Describe > Advanced.
2 On the Describe - ER/Studio Integration Advanced Setup dialog, click the Datatypes tab.
3 Click a UML or Database type and then select another type from the list.
4 When finished changing the UML to datatype mappings, click Save Mapping, and save your changes to a new
mapping file.
5 When finished making changes on the other tabs of the dialog, click OK.
A new model is created based on the Describe project specified.
Notes
The following describe options that require additional explanation:
• Datatypes added as: Database types are mapped to UML types; you can add datatypes as User Datatypes or
as Domains. Select an option.
• Import Mapping: Select Import Mapping to import an XML file that contains datatype mappings. The Open dialog
opens, allowing you to select an XML file. Click Open to import the file and return to the ER/Studio - Describe
Integration Advanced Setup Editor.
• Import Dictionary: Lets you import an ER/Studio diagram’s Data Dictionary. Clicking Import Dictionary opens a
dialog box, that lets you select a dm1 file whose Data Dictionary you want to use. Click Open to import the Data
Dictionary and return to the ER/Studio - Describe Integration Advanced Setup Editor.
Mapping Relationships Between Describe and ER/Studio
The table below illustrates how Describe relationships map to ER/Studio relationships.
Describe Relationship ER/Studio Relationship
Generalization Link Creates an incomplete subtype cluster:
ER/Studio supertype = Describe Super Class
ER/Studio supertype = Describe Super Class
Realization Link Not supported for export to ER/Studio
Dependency Link Not supported for export to ER/Studio
1:1 association link Creates a non-identifying relationship:
ER/Studio parent = Describe start class
ER/Studio child = Describe end class
1:N association link Creates a non-identifying relationship:
ER/Studio parent = Describe start class
ER/Studio child = Describe end class
N:M association link Creates a non-specific relationship:
ER/Studio parent = Describe start class
ER/Studio child = Describe end class
EMBARCADERO TECHNOLOGIES > ER/STUDIO® 8.0.3 USER GUIDE 50