Chapter 4 Working with Conceptual Data Models

Checking a CDM

You can use check the validity of your CDM at any time. A valid CDM conforms to the following kinds of rules:

Each object name must be unique
Each entity must have at least one attribute
Each relationship must be attached to at least one entity

Check your CDM before generation
We recommend that you check your CDM before generating another model from it. If the check encounters errors, generation will be stopped. The Check model option is enabled by default in the Generation dialog box.

To check a CDM:

Press F4, or

Select Tools→Check Model, or

Right-click the diagram background and select Check Model from the contextual menu

The Check Model Parameters window opens, which allows you to specify the kinds of checks to perform, and the objects to apply them to. For detailed information about this window and correcting problems reported, see "Checking a Model" in the "Managing Models" chapter of the General Features Guide .

The following sections document the checks available by default for a CDM.