XML-based description model of a Web portal for maintenance of machines and systems

Web technologies are gaining increased importance in automation and control systems. The choice of appropriate Web technologies depends on the use cases in the application environment. However, it is important not only to focus on a single technology, but to integrate them into a content model. The paper discusses a Web portal for maintenance of machines, that uses several Web technologies. It is based on a hierarchical description model. The structure of this model is described and application aspects are shown.