Chapter 3 Building Structural Diagrams
Check parameters are sets of conditions which data must satisfy to remain valid. They are attached to attributes and domains. They are principally used in a CDM or a PDM. They are of importance only when importing a CDM or importing a PDM into an OOM. They are not used in the OOM alone.
There are three types of check parameters you can therefore use in an OOM:
| Parameter type | Description |
|---|---|
| Standard parameters | Common data constraints defining a data range |
| Additional check parameters | SQL expression defining a data constraint using variables instantiated with standard parameter values |
| Validation rule | Business rule defined as a server expression |
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