Object-oriented Web engineering for large-scale Web service management

The Web implementation model is based on a low level technology and does not provide abstractions for capturing higher level design concepts, therefore design decisions are difficult to track in an implementation, so that maintenance becomes a difficult and error-prone task. We introduce the WebComposition system addressing this problem. This system is based on a fine-grained object-oriented Web application model. Services are logical units or business processes represented as groups of WebComposition components. The automatic creation for this class of components is possible using service factories, which are modeled on creational design patterns. Service factories enhance the planning for the evolution of the overall structure of large-scale Web sites. WebComposition maintains access to all resources throughout the lifecycle for management and maintenance activities. Modifications of the model are made effective in the Web by incrementally mapping the model to file-based resources.