In Chapter 2 an object model-based concept, the service object for the specification of basic services of a CAME environment, is given. The focus of this chapter is to identify the composition of such an environment. The basic service objects and relevant service object primitives of a service-based model of a CAME environment is presented in this chapter by mapping the services and primitives to an example problem domain. This example problem is used to formulate a generic architectural representation for a CAME service description of an information modeling support environment. Such a representation should be capable of providing a flexible and extendable mechanism for information systems design processes. An informal description of the basic CAME service framework is presented in the remainder of the chapter.