Building self-adapting services using service-specific knowledge

摘要: With the advances in middleware and Web services technologies, network sendees are evolving from simple client-sender applications to self-configuring that can compose primitive components distributed Internet into a value-added service configuration provides rich functionalities users. A resulting research problem is how continuously adapt such composite configurations at run time order cope with increasingly dynamic heterogeneous environments computing platforms. In this paper, we propose self-adaptation architecture allows developers specify their service-specific adaptation knowledge as "externalized" strategies. These strategies used by general, shared framework perform run-time operations automatically incorporate knowledge. addition strategies, also identify another aspect of not addressed previous solutions: coordination. Our integrated support for specification execution both aspects developers'