An Algebra-Based Reliability Prediction Approach for Composite Web Services

As the most attractive realization of component-based software, composite Web service asks a heavy demand for reliability prediction in the early stage for service discovery and service composition. Although it is believed that input should be one of the most important aspects affecting the reliability of a component-based system, research of both giving more details on an operational profile and considering software architecture to get more accurate reliability prediction is scant. This paper describes an algebra-based reliability prediction approach in three aspects: (i) a sub-set of OWL-S that provides reliability estimation information is discussed; (ii) a framework that describes syntax and reliability prediction semantics of the sub-set is explained and implemented in Maude; (iii) an example of how to use the framework to calculate reliability is studied.