Representing real-world processes

form for representation of both material and information processing. lhditional modelling languages from the information systems field are inappropriate for capturing realworld dynamics because they put more emphasis on the modelling of static aspects than dynamic aspects, or because they are usually limited to modelling information processing, not the processing of material. This paper addreaaea the detailed representation realworld processing at the lowest level of decomposition in dynamic modela. A new conceptual framework is presented for this. The framework utiliaes the well-known abstraction mechanisms from semantic data modelling: aggregation, genemliaation, and association, but now for a dynamic pufpoae, i.e., to model actions performed on objects instead of the objects themselves. The framework integrates detailed representation of matenal proceaaing and information processing. Integrated modelling of material and information processing is necessary whenever material and information processing interact strongly in the object system to be modelled: The processing of material usually depends on information, while information are often carried by materials. In the latter case transportation of the information will depend on transportation of the material itself. Sometimes this may be an unwanted situation since material often has a, bottleneck in transportation whereas information has its main bottleneck in processing. Such dependencies should therefore be captured.