Abstract
Large-scale and complicated business process modeling is not supported by traditional single-designer business process modeling tools. This paper investigates a collaborative business process modeling method based on top-down pattern, where the conflict issue in collaboration is explicitly accounted for. An access control mechanism is proposed and four rules of locking up are defined to restrict designers access to models. Then the locks impact on efficiency of collaborative modeling is deeply studied. At last an integrated multi-designer modeling system IPro is developed based on the above collaborative mechanism and applied to several business process modeling projects in aviation industry to validate the mechanism.
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