Accession Number : ADP003942

Title :   An Effective Graphics User Interface for Rules and Inference Mechanisms,

Corporate Author : GENERAL ELECTRIC CORPORATE RESEARCH AND DEVELOPMENT SCHENECTADY NY

Personal Author(s) : Lewis,J. W.

Report Date : JUN 1984

Pagination or Media Count : 5

Abstract : As the technology of rule-based inference mechanisms matures, knowledge, acquisition - the creation, structuring, and verification of rules - becomes increasingly important. The accuracy and completeness of the rules in the knowledge base determine expert system performance, and the cost of acquiring that knowledge base dominates all other hardware and software costs in practical systems. To reduce knowledge acquisition time and error rate, a new interactive graphics interface for rules is being designed and implemented in GE Corporate Research and Development. In the new system, each set of rules is represented as an AND/OR graph and parts of the rule base are displayed on a CRT screen as an AND/OR tree. A user - even an unsophisticated user - can navigate the AND/OR graph, identify nodes to be modified, analyze the behavior of the graph, verify its correctness graphically, and follow the execution of inference engines. (Author)

Descriptors :   *Interactive graphics, *Man computer interface, User needs, Data acquisition, Cathode ray tube screens

Distribution Statement : APPROVED FOR PUBLIC RELEASE