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Derived Properties Constraints [message #627527] Mon, 27 April 2009 13:11
Marco MosconiFriend
Messages: 63
Registered: July 2009
Member
Hi all,

I'm wondering why the UML metamodel doesn't define an attribute on
uml::Property to hold a specification for its derived value. For
Operations similar attributes are defined for body, precondition and
postcondition.
With such an attribute it would be possible to formally specify
derviation constraints directly in the metamodel instead of using the
common workaround to introduce additional operations (which IMHO is
really bad).

Any insights/opinions? (Should I raise an issue at OMG for this?)

Cheers,
Marco
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