Service organisation and information consistency for service grid

As the emergence of Open Grid Service Architecture (OGSA), service grid is seen as a natural progression from computational grid. Because of the diversity and the complexity of the applications, it is a large challenge for the research on service grid platform. Currently, the popular information service systems are basically used to provide registry, publication, and management for computing resources, data resources and network resources, and etc. However such systems couldn’t meet the requirement of service grid. A perfect information service model, HowU information service, is proposed for service management and organization. The “service” is regarded as the basic unit of information publication, and a novel service naming and meta-data description mechanism is provided in this model. A grid user is not concerned with the resource details of a service, but its existence and current serving capability. In this paper, we focus on the information consistency issue of HowU information service about how to guarantee service existence in wide area and service information validity in organization area.