UML Profiles for WS-Policy4MASC as Support for Business Value Driven Engineering and Management of Web Services and their Compositions

WS-Policy 4MASC is an XML language for specification of policies for run-time Web service management (monitoring and control) activities executed by the manageable and adaptable services compositions (MASC) middleware. Among its original contributions are specification of diverse business values (benefits or costs, tangible or intangible, agreed or possible, absolute or relative) and specification of various control strategies maximizing different business values (e.g., only agreed intangible benefits). To facilitate development of Web service systems that can be managed with WS-Policy 4MASC and the MASC middleware and to improve alignment between run-time management activities and design-time models, we developed novel UML profiles for WS-Policy 4MASC. Their original contributions are in improved support for: a) specification of run-time management activities and business values within design-time models, b) automatic creation of run-time management policies from design- time models, c) feedback of run-time management information values into analysis of design-time models. We validated our solutions on detailed examples.