Analysis, Design and Implementation of Exception Handling in WWW Services

WWW (World Wide Web) has become the richest resource pool of services and information. By integrating the existing independent services in WWW, users can compose and create abundant new services, such as stock alert service, automatic trading service. Due to the characteristics of Internet - wide-area distribution, lack of referential integrity and no quality of service, how to assure the reliability and accuracy of execution of new composed services is very important and indispensable. In this paper, we analyze the possible causes of exceptions and their solutions in WWW service integration and then design and implement the exception handling mechanisms in our WWW service integration tool