Abstract
After considering service delivery process and service infrastructure, we characterize the service process. The processes are classified into three groups: value-adding process, enabling process, and support process, according to Harvey(2005). The innovation architecture for service (service IA)is proposed and applied for a newly started railway company, called the Tukuba express. It is turned out that the service IA is a tool for intelligence of service innovation strategy formulation. Based on the consideration above, we examine possible application of business process engineering to service innovation.