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6.2.1 Tool independence
6.2.2 Representation independence
6.2.3 Concepts of the data model

6.2 Data model

To understand how to build models as well as reuse and link design information between models you should know something about the higher-level structure of the repository, i.e. the data model. In this chapter we describe the underlying data model.

Basically the data model defines:
*What aspects of your design information are stored in the Object Repository.
*How the various tools of MetaEdit+ manage that information.
*How generators retrieve information from the repository.
*How new modeling languages can be implemented into MetaEdit+.
In the following the structure of the data model is explained with eight general rules.

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