抄録
This paper describes a case study of software development of computer-aided fault tree analysis system for reliability design in manufacturing industry. This software development aims at realizing a practical product for the corporate business based on academic research products. But, this kind of software development usually faces two problems, development cost and usability of the software. We overcame those problems by introducing a software development methodology based on our software development platform "MZ Platform" and utilizing the iteration process of prototyping and reviewing in a short period.