抄録
For improving competitiveness of services, the concept of service eco-system such as ones proposed in open services innovation is getting more important. To establish a design methodology of service eco-system, we have studied the relationship among stakeholders in a service eco-system and each actions. As a result, we proposed the framework of service eco-system, which expresses the relationship between processes of such stakeholders as producer, user, supplier, user community and supplier community. Then it became clear that knowledge creation, accumulation and application are significant to make a service eco-system sustainable. Hence, as a next step, in this paper, we propose how to depict "knowledge creation, accumulation and application processes" and "functions for each processes". Amazon.com case and Twitter case were analyzed for constructing function representation. There are still many things to be considered, but it would be a useful for construction of a design methodology of service eco-system.