End-user friendly UI modelling language for creation and supporting evolution of RIA
End users have a comprehensive understanding of business needs which is often hard to fully capture. One possible solution to this is empowering end-users to create and manage business applications. To empower end-users the paper presents an end-user friendly UI modelling language. The language facilitates the creation and supports the evolution of RIAs with changing business needs. The modelling language is based on various types of structural dependencies among the interface elements in RIAs. These structural relationships are identified in the paper. It also derives the data model from the end-user UI specifications. Evolution is discussed from three perspectives, namely, the structural model of interfaces, the behavioural model of interfaces and the underlying data model.