Development of personal computer aided analysis and evaluation support system for human related incidents in nuclear power plants

A remedy-oriented analysis and evaluation procedure, had been already developed by the authors, as a method of making systematical survey of fact-finding, cause identification, and proposal of countermeasures for human-related incidents in nuclear power plants. This paper describes a personal-computer based analysis and evaluation support system which was newly developed for the purpose of practical and extensive use of the above procedure. The computer-based system can support the analyst's desk top analysis and evaluation procedure by replacing each step of the procedure into some prescribed questions so as to improve the following points: (1) to make analysis more systematically; (2) to provide analysis reports automatically; (3) to make it easy to master the procedure, etc. As a consequence of the support system introduction, it was shown that the system could reduce the time required for analysis and evaluation by a half, and also possible to reduce the time necessary for the training course for the user to have better understandings of the procedure, than without the system.