The Technical Reference Model (TRM)
The Technical Reference Model (TRM) provides a model and taxonomy of generic IT platform services. It is a foundation on which more specific architectures and architectural components can be built. Based on the Integrated Information Infrastructure Reference Model (III-RM), the main use of such a reference model is to provide terminology and a checklist.
In HOPEX Suite for TOGAF, the TRM is implemented via the "City Planning" concept available in HOPEX Architecture.
For more details on HOPEX features, see the HOPEX Architecture and HOPEX Planning user guides.