Abstract—The Object Management Group (OMG™) is

Abstract -- The Object Management Group (OMG™) is defining specifications supporting a modeling environment that permits models from a ‘family of modeling languages’ to populate a repository. In that environment, mechanisms that give coherence to the collection of models defining a project are the repository’s common meta-model and constraints enforcing a notion of well-formedness on the content of the repository. This paper argues that additionally what is required to implement a model driven architecture (MDA™) is an ‘intermodel’ language with reach beyond an object context into an ontology of the domain vocabulary and requirements definition. If specifications under this arrangement are modularized properly, reuse of the domain terminology and business sector characterization is possible. The repository federates models into an emergent enterprise model. This paper considers opportunities for an inter-model language in supporting traceability of requirements from domain knowledge to implementations. It explores an idea of modularized specifications where domain knowledge is separated from implementation-biased models and reified refinement relations bridge the gap.

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