Macro Semantic Relations in Services Computing

We state the macro semantic relations (MSR) in services computing from four courses-services discovery, services composition, services selection and services recommendation. We analyze the MSR through black box-details are ignored, and the characters of I/O are stressed. First, describe Web services with IOPEs and QoS. Secondary, describe the semantics of each course. In the description of composite services, we present the composite semantics through sequence, selection and concurrent relation, etc. For enhancing the accuracy of matchmaking requirement service and registered service, a matrix model of services composition based on complex network is imported. In the process of services selection, we propose select the service depending on the performance-price ratio. And analyze user information from three parts-basic information, access history information, and act information.