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Model Validation


You use Model Validation to check UML models against known UML rules (which you identify when configuring validation) as well as any constraints defined within the model using the Object Constraint Language (OCL). You can run Model Validation against a single UML element, a diagram or an entire Package.

You can add to the system-provided validation rules by using an Add-In or an MDG Technology that contain their own rules.

Access    Project | Model Validation | Validate Selected (Ctrl+Alt+V)

Validation Concepts



See also

Validating Objects

Validating a UML:

Element validates the element and its children, its features (attributes and operations) and its relationships (connectors)
Diagram validates the diagram itself (for correctness) as well as any elements and connectors within the diagram
Package validates the Package and all sub-Packages, elements, connectors and diagrams within it



Example - Model Violation

The following UML diagram contains several basic violations of the UML rules:




If you run Model Validation on this diagram, the following violations are identified in the System Output window:

A UML ExpansionRegion (ExpansionRegion1) is missing its child input ExpansionNode
An invalid self-generalization exists on Class2 (UML elements cannot be self-generalized)
An OCL violation exists for the anonymous Association (between Class2 and Object1)
A UML ExceptionHandler (ExceptionHandler1) is missing its child input ObjectNode



Learn more

Define Validation Configuration (MDG Technologies)