Feature-based Modelling of a Complex, Online-Reconfigurable Decision Support Service

In this paper, we show how the concepts of components, features and services are used today in the Online Conference System (OCS) in order to marry the modelling of functionally complex, online reconfigurable internet services at the application level with the needs of a model-driven development amenable to analyze and verify the models. Characteristic of the approach is the coarse-grained approach to modelling and design of features and services, which guarantees the scalability to capture large complex systems. The interplay of the different features and components is realized via a coordination-based approach, which is an easily understandable modelling paradigm of system-wide business processes, and thus adequate for the needs of industrial application developers.