An Approach to Preserving Consistency of SOAs in Dynamic Evolution

Service oriented system is very popular in both academic and industry. One reason is that a new complex application can be agilely implemented via the collaboration of the existent services. In the dynamic Web service environment, the Web service based applications often suffer from the leaving of component services dynamically, which will result in partial executed conversations, namely the inconsistency of the system. In the paper, we discuss how the inconsistency is produced and present an approach to handle the problem, preserving the system consistency.