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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Modeling Language Variability
verfasst von : Hans Grönniger, Bernhard Rumpe
Erschienen in: Foundations of Computer Software. Modeling, Development, and Verification of Adaptive Systems
Verlag: Springer Berlin Heidelberg
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A systematic way of defining variants of a modeling language is useful for adapting the language to domain or project specific needs. Variants can be obtained by adapting the syntax or semantics of the language. In this paper, we take a formal approach to define modeling language variability and show how this helps to reason about language variants, models, and their semantics formally. We introduce the notion of
semantic language refinement
meaning that one semantics variant is implied by another. Leaving open all variation points that a modeling language offers yields the notion of the
inner semantics
of that language. Properties of the modeling language which do not depend on the selection of specific variants are called
invariant language properties
with respect to a variation point. These properties consequently follow from the inner semantics of a model or language.