抄録
In this paper, the authors propose computerized support system (FTAid) for fault tree analysis (FTA) that is developed by the collaborative research group (Jatco Ltd, The University of Tokyo and AIST). FTA is a method of analyzing and visualizing the causes of a fault event by Fault Tree diagram (FT diagram) in problem resolution of product and design processes. However FTA has a problem that is so many working hours to make a FT diagram without any misunderstandings and oversight. The system (FTAid) is developed based on the knowledge management of quantity dimension indexing that was proposed by Prof. Murakami, and the block diagram. We report the efficiency and effectiveness of FTAid system based on evaluating results (verification and validation) in actual development process, and describe the possible feasibility and future study for proposal methods in complex system development.
