The Study, Based On Semantic Tree Uddi Architecture

UDDI(Universal Description,Discovery and Integration) is the most widely used standard of discovery of web services.It defines a registry to save all kinds of information which is used for web services discovering.To resolve the problem of the keyword based discovery and the structure of the traditional UDDI center,this thesis puts forward a new type UDDI structure named Semantic UDDI Tree Structure,which integrates the features of the only-one UDDI structure and the multiple-points UDDI structure.And also this thesis puts forward the definition of UDDI point set and its building method.It extends the inner structure of UDDI points in this structure.It integrates semantic similarity into the web service discovery.Also it adds the QoS verification to the web service publishment and discovery.This thesis elaborates on the mechanic of web service publishment and discovery under this new type UDDI structure and the corresponding discovery algorithm.And it elaborates an application example to verify the precision,the recall and the efficiency of the algorithm.At last, this thesis elaborates on the management policy of the UDDI point sets under this UDDI structure.