A Software Design Approach for Micro-Prcessor Based Safety Monitoring System

The design of software for a distributed, intelligent multiple microprocessor based system requires a disciplined team approach. This paper presents the methods and procedures used in the development and documentation of software programs for the Westinghouse Plant Safety Monitoring System (PSMS). Much effort has gone into designing a system that provides the reactor operator and supervisory personnel with concise, reliable and pertinent information about the safety status of the reactor system. The experiences in resolving the requirements and design dilemmas and in achieving team synergism are presented.