This paper describes how knowledge-based techniques can be used to overcome problems of workflow management in engineering applications. Using explicit process and product models as a basis for a workflow interpreter allows to alternate planning and execution steps, resulting in an increased flexibility of project coordination and enactment. To gain the full advantages of this flexibility, change processes have to be supported by the system. These require an improved traceability of decisions and have to be based on dependency management and change notification mechanisms. Our methods and techniques are illustrated by two applications: Urban land-use planning and software process modeling. 1 Motivation On account of global competition, the efficiency of business processes has to be improved, resulting in a reduction of process requirements in terms of time and cost. This business objective leads to approaches as lean management and business process reengineering & optimization. In ord...
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