抄録
Fault Tree Analysis is one of effective methods of ensuring security and safety of a product. Creating a fault tree, however, requires a deep knowledge about the product and physical phenomena, and it takes a lot of time and effort to create one. To solve this problem, authors propose a knowledge management method called quantity dimension indexing. Authors also report the efficiency and effectiveness of computer-aided fault tree analysis software (FTAid) which uses this method. Lastly, the authors propose an automatic indexing method using shallow parsing for the usage of quantity dimension indexing in real work places.
