This table describes how to work with a subject area for data modeling before transformation:
|
Step |
Description |
P |
E |
Objects |
Considerations |
|---|---|---|---|---|---|
|
1 |
Create a subject area |
A |
S |
Parent subject area |
|
|
2. |
Create a subject area and move existing entity types into it. |
M |
D |
Entity types to move |
|
|
3. |
Detail a subject area or any of its components and entity types. |
M |
S |
Subject area |
|
|
4. |
Place unplaced subject area or any of its components. |
M |
S |
Subject area |
You may want to include more of the data model (by scoping on other subject areas with Access, Short) to make an aesthetically pleasing ERD. |
|
5. |
Delete components of a subject area. |
D |
D |
Subject area |
An attribute or relationship that is referenced in a view of an entity type cannot be deleted. The Object Cross Reference Delete Prevention report identifies scoping objects needed to define a subset that contains all references. An entity type that is referenced in a view or in expected effects cannot be deleted. |
|
6. |
Delete a subject area. |
D |
D |
Subject area |
An attribute or relationship that is referenced in a view of an entity type cannot be deleted. The Object Cross Reference Delete Prevention report identifies scoping objects needed to define a subset that contains all references. An entity type that is referenced in a view or in expected effects cannot be deleted. |
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