An Effective Organizing Mechanism for Web Services Resource in Grids

Effectively organizing and obtaining the resources of Web services is a critical problem in grid computing.Based on OGSA（open grid service architecture）, an effective model for the grid Web service resource organization is presented.The new model separates the logical structure and the physical resource organization of the Web services and uses the hierarchical WSNS（Web services name system） to search and locate the resources of Web services, which are maintained by AAS （area autonomy system）.In addition, the organizing protocol and data structures required for implementing the model are discussed in detail.Theoretical analysis of the model and simulations of the prototype system show that the model is reasonable and effective in that it has a good performance of resource organization and location with low cost, good adaptability in heterogeneous, complex and dynamic environment and high scalability for the resources of grid Web services.