Rules Reference

Topic	Detail	See also
Validation Rules	Model Validation works against a set of validation rules, arranged in the following groups: • (Element, Relationship, Feature, Diagram): Well-Formedness Checks whether or not an element, relationship, feature or diagram is well-formed; this group of rules includes checks such as whether the item is a valid UML item and whether a diagram contains valid elements within it   • Element: Composition Checks whether or not a UML element contains valid children, whether it contains the right number of valid children, and whether or not the element is missing any required children   • (Element, Relationship, Feature): Property Validity Checks whether or not the item has the correct UML properties defined, and whether the properties contain incorrect or conflicting values   • (Element, Relationship, Feature): Custom Properties Validates an item against any defined constraints in OCL	Well-Formedness       Element: Composition   Property Validity     OCL Conformance

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