Interfaces for knowledge-base builders' control knowledge and application-specific procedures

Expert System Environment/VM is an expert system shell—a general-purpose system for constructing and executing expert system applications. An application expert has both factual knowledge about an application and knowledge about how that factual knowledge should be organized and processed. In addition, many applications require application-dependent procedures to access databases or to do specialized processing. An important and novel part of Expert System Environment/VM is the technique used to allow the expert or knowledge-base builder to enter the control knowledge and to interface with application-dependent procedures. This paper discusses these high-level interfaces for the knowledge-base builder.