Research on Grid Technique for Distributed Information Search Model

With the development of information technology,the technology of distributed information retrievel is increasingly becoming the hotspot of information serveice research.Locating,accessing,retrieveling information efficiently is a main problem needed to be solved in WAN.Data Grid is an efficient way to solve the problem.The virtual Meta data model combining LDAP directory service offer the Meta data Directory Service(MDS).Based on it the uniform data access interface is put forward,then realizing the uniform data access in the grid environment.At last a distributed heterogeneous information retrieval model is proposed on the design concept.