On using Inplace Transformations for Model Co-evolution
Sprache des Titels:
Englisch
Original Buchtitel:
Proceedings of 2nd International Workshop on Model Transformation with ATL
Original Kurzfassung:
Metamodel evolution and model co-evolution are considered
to be essential ingredients for the successful adoption of model-driven
engineering in practice. In this respect, on the one hand, dedicated co-
evolution languages have been proposed for migrating models conforming
to an initial metamodel to models conforming to a revised metamodel
with the drawback of requiring to learn a new language. On the other
hand, the employment of dedicated model-to-model transformation languages has been proposed demanding for the specification of rules for
copying unchanged elements.
In this paper, we propose to tackle the co-evolution problem from a
different viewpoint. Instead of describing the co-evolution of models as
a transformation between two metamodels, we employ existing inplace
transformation languages. For this, the prerequisite is to represent both
language versions within one metamodel which is automatically computed by merging the initial and the revised metamodel. This ensures
that the initial as well as the revised model conform to the merged metamodel, enabling the employment of inplace transformations for initializing new metamodel elements. Finally, a check-out transformation is used
for eliminating model elements which are no longer covered by the revised metamodel.We demonstrate this idea by using ATL for merging the
metamodels and realizing the check-out transformation. Furthermore, we
discuss the ATL refinement mode for co-evolving the models.