FairCom DB is designed to simplify the transition between different platforms or operational models. For the most part, changing models is simply a matter of compiling new libraries and re-linking your application.
However, some concepts are specific to one operational model. The transition can be made smoother by reading the entire section titled Operational Models (Operational Models, http://docs.faircom.com/doc/ctreeplus/30177.htm) in the FairCom DB Developer's Reference Guide.