For many information domains there are numerous World Wide Web data sources. The sources vary both in their extension and their intension: They represent different real-world entities with possible overlap and provide ...

Model driven engineering is a popular attempt to deal with the complexity of modern software systems. For the telecommunication sector a model driven approach means that you have to handle half a dozen ITU-T modelling ...

Today the syntax of many languages is defined by using context-free grammars. These syntax definitions suffer from a major drawback: grammars do not allow the definition of abstract, reusable concept definitions. Especially ...

Models can be used in many stages of many different processes, but in software engineering, the ultimate purpose of modelling is often code generation. While code can be generated from any model, we propose to use an ...

Compiler builders have for a long time used tools that automate the frontend process of scanning and parsing the input. However, tools to handle the result of the parse are rarely found. Kimwitu++, the term processor, is ...

Im außertropischen Südamerika haben nach der Zerstörung der natürlichen Vegetation durch die europäischen Siedler und ihre nicht nachhaltige Landnutzung irreversible Prozesse der Bodenerosion eingesetzt. Im mittelchilenischen ...

2002 ist das Jahr der Geowissenschaften und allenthalben feiern sich Fachdisziplinen als Schwerpunktbereich geowissenschaftlicher Forschung. Aber welche Fächer gehören eigentlich zu den Geowissenschaften? Die Spannweite ...