This is an example of modeling and naming conventions that can be used within an architecture repository. This elaboration is an example of how to develop a metamodel and its conventions. In this case for a data architecture development. The metamodel has been developed based on the DMBoK framework. This means that part of the framework has been developed and the others have not yet. Here, particularly from the point of view of the data architect, is an elaboration of modeling conventions and architectural models. Working with meta data requires a white paper on metadata modeling methods.