Abstract
Recent software development is shifting to service business such as SaaS rapidly, which provides one software to plural customers, unlike the conventional project such as order type SI which is specialized for every customer. Unlike SI which manages individual project, service business is needed to consider the overall service to be a "program" from the point of view that how it collects the fund by later service operation and plan the overall optimization of the program. Therefore, in service business risk management, the assessment viewpoint different from conventional SI should be included in check list used for risk assessment. We illustrate by this report about the making the check list for the purpose of risk management in service business. At first we built a structure called RBS (Risk Break Structure) which had plural risk segments and classified risks into the segments. Then we extracted check items necessary to identify risks of service business and classified them into each segment of RBS. In use of the check list, we found problems that there were risks unrelated to the character of the service business and that the overhead of the assessor is high because of the much number of the risk items, and we developed functions that deleted unrelated items or showed only necessary items according to the assessors' role and the service phase.
