Managing Dependent Changes in Coupled Evolution

In Model-Driven Engineering models and metamodels are not preserved from the evolutionary pressure which inevitably affects almost any artefacts. Moreover, the coupling between models and metamodels implies that when a metamodel undergoes a modification, the conforming models require to be accordingly co-adapted. One of the main obstacles to the complete automation of the adaptation process is represented by the dependencies which occur among the different kinds of modifications. The paper illustrates a dependency analysis, classifies such dependencies, and proposes a metamodeling language driven resolution which is independent from the evolving metamodel and its underlying semantics. The resolution enables a decomposition and consequent scheduling of the adaptation steps allowing the full automation of the process.

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