| Time Issues in Advanced Workflow Management Applications of Active Databases (1995) | |||||||||||||||
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| Workflow management systems schedule tasks in accordance with previously known process types. Additionally, advanced workflow applications have to deal with parametric processes and exceptional situations. Using active database technology to implement such applications results in mature demands for their respective time handling capabilities. This regards both, the possibilities of time specification as well as a sophisticated time management within the rule execution mechanism. In this paper we examine necessary time handling potentials for active databases in order to implement advanced workflow. To do so, the ontologies of advanced workflow and corresponding time structures are introduced. We will tackle the problems that occur when implementing advanced workflow, especially predictive and reactive scheduling, synchronisation and recovery in the active database settings. It will turn out that techniques fulfilling soft real--time requirements are sufficient. 1 Introduction Processe... | |||||||||||||||
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