[en] This progress report is a summary of the work performed for the period September 30, 1987--September 29, 1988 under the project sponsored by the U.S. Department of Energy, Technology Supports Program, entitled, ''Signal Validation in Nuclear Power Plants.'' The objective of the research project is to develop and implement parallel signal processing methods for validating process signals used in control, protection and plant monitoring system and the methodology are such that, this approach is readily applicable to chemical industry processes, process control systems and to future advanced reactor systems