A Change Metamodel for the Evolution of MOF-Based Metamodels

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The evolution of software systems often produces incompatibilities with existing data and applications. To prevent incompatibilities, changes have to be well-planned, and developers should know the impact of changes on a software system. This consideration also applies to the field of model-driven development, where changes occur with the modification of the underlying metamodels. Models that are instantiated from an earlier metamodel version may not be valid instances of the new version of a metamodel. In contrast to other metamodeling standards like the Eclipse Modeling Framework (EMF), no classification of metamodel changes has been performed yet for the Meta Object Facility (MOF).