Abstract
With a shift to knowledge society, ICT products are getting complicated and shortening its life cycle. This brings dramatic increase of development investment burden for product vendors. Therefore the importance of standardization that is created by collaboration over the companies rises, and the innovation by standardization rises also. Though Standard Development Organizations (SDOs), which is called a de-jule standard organization, does a very important role as an infrastructure of innovation, it takes time for standardization. So the gap between SDO outcomes and demand of companies is getting wider since the compatibility is important in the fast changing ICT industry. In this study, consortium that is increasing recently is taken up to solve problems of standardization. Consortium organizes co-operation, develops standards and promote the standards to the market. Case studies on several consortia were done, and try to raise critical factor for consortia management. First, "a life cycle of standardization" is discussed and classified them into three life stages, "the initial phase", "the development phase", and "the promotion phase". Then getting interview from consortia, critical factors for managing consortia are analyzed and distilled.
