Working in a repository involves establishing modeling conventions. Not only a selection of the modeling languages and within them a subset of the concepts to be used is being developed. However, the modeling convention is of equal importance. After all, there is joint work on architectural models and the modeling conventions should contribute significantly to the consistency of the models and the prevention of contamination of the repository content. In this elaboration a first global elaboration of naming conventions is given. When implementing a repository, this must be worked out in more detail within the organization per language and for the hybrid modeling languages in use. In addition, a more detailed example has been worked out below the tools as an example.