Dynamic Workflow Management for Cooperative Work and Its Application to Medical Examination Models in Hospitals

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  • 協調作業のための動的ワークフロー管理と病院診療モデルへの応用
  • キョウチョウ サギョウ ノ タメ ノ ドウテキ ワークフローカンリ ト ビョウ

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In order to realize cooperation among various persons, it is required to establish reliable communication among them. Workflow diagrams have been used to represent complicated process by decomposing it into small unit tasks and relationships among them. Conventional workflow diagrams are not sufficient to represent human cooperative work, since modification of job flow is frequently required due to some unexpected conditions. For example, a person has to finish urgent work for his family. IDEFO is develolped as diagrams which are easy to understand. To handle such dynamic nature, we propose a generalized IDEFO diagrams, which can be easily translated to programs for active databases. Workflow simulator is also developed in order to handle cases when unexpected condition occurs. The methods are applied to represent medical examinations and diagnoses in a typical middle-size hospital. Process workflow is dynamically modified due to the waiting time of patients and availability of physicians. In order to prove the correctness of the workflow simulator, we examined the model using typical hospital data. The results almost coincide with the real hospital cases and thus we can assume that the simulator works correctly. We can further show that the model can handle problems caused by modifying the workflow dynamically.

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