A scalable semantic grid framework -- VDHA_Grid

This work presents a scalable semantic grid framework based on virtual and dynamic hierarchical architecture (VDHA) - VDHA_Grid. This framework includes a scalable grid information service, in which the information such as services and resources are published and registered into its owner node by the node itself. Service discovery is scalable, autonomous, efficient, and reliable. VDHA_Grid also includes a scalable grid security infrastructure, which solves the problem of mapping global entity name into local entity name and managing large number of users and resources.