A Cooperative Service Architecture for Digital Library Federation Based on Grid

The main problem of cooperative operation in DLF is resource sharing and resource unified management under heterogeneous environment. Based on the theory of grid and its application, a content service grid for digital library federation (DLF) is constructed, and the components and their functions of every grid layer are analyzed. Then a method of resource sharing based on publish/subscribe notification mechanisms and concept retrieval models is presented, and a cooperative service architecture for DLF based on resource sharing is proposed. Finally, a sample of content retrieval based on grid is demonstrated.