Abstrakt
Information systems increase their size and complexity. Users of information systems become rather partners than clients of software developers.
Users take increasing part in agile and modifiable business processes supported by software systems. They usually should take part in system development and maintenance and be able to apply their business expertise.
We show that the issues can be solved if a document-driven service-oriented software architecture is used. The services forming the architecture are autonomous.
They exchange the (business) documents via a network specific (infrastructure) services. It substantially enhances the properties of the virtual middleware and overall quality of the developed system.
This solution enables to use, retail, and develop user business knowledge and skills. There are further technical as well as economic advantages like smooth and cheap continuous system maintenance, incremental specification and development, ability to reuse software and to meet planned terms and investments.
The paper is based on our long-term practical experience, research, consulting, and educational activities.