Study On Semantic-Based Web Service Discovery

With the fast development of internet, the growing number of web services available on the Web raises new and challenging search problems: efficiently locating functionality-desired web services among numbers of web services and selecting a best one among large numbers of functionality-similar web services. While these just are the task of web service discovering. However, traditional web service discovering technology is done by keyword match based on the syntactic description of web service. Such web service discovering technology can not capture the semantic information of web service and is lack of intelligence, so it can not meet the growing demand of people. In order to get a better result of discovering, a more efficient and perfect web service discovering technology is needed. The purpose of Semantic web is to extend the current Web, makes the information on the Web semantic and understood, managed by machine.So semantic-based web service discovering technology is becoming a hot research topic. The researches show that the use of semantic description and ontology of web service can improve the result of service discovering.According to the above mentioned two problems, the following three parts are studied in this paper:(1) Study on quality of web service (QoWS)In order to resolve the problem how to discovering a better one in large numbers of functionality-similar web services, based on the characteristic of web service, an proper QoWS model are proposed in this part. The history stat. information and the latest information of quality of web service are taken into account in this QoWS model. What more, an ontology of quality of web service called QoWSO is also proposed to describe the quality in consistency. Finally, a management system called QoWSCA is is designed and implemented in this part. QoWSCA provides a function of management of quality of web service. The study on quality of web service (QoWS) paves the way of the following study on web service description and web service matchmaking.(2)Study on semantic description of web serviceThe definition and expression of web service is study in this part. Based on the requirement of description during the process of web service...