Abstract:Modelling languages such as the UML specify well-formedness as constraints on models. For the refactoring of a model to be correct, it must take these constraints into account and check that they are still satisfied after the refactoring has been performed-if not, execution of the refactoring must be refused. By replacing constraint checking with constraint solving, we show how the role of constraints can be lifted from permitting or denying a tentative refactoring to computing additional model changes require… Show more
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