关键词: 流程距离, 测度模型, 流程, 工作流（WF）-net, 扩展的过渡邻接关系（E-TARs）

Abstract: Process comparation has been one of hot research focuses in the business process management. It is about the obtainment of the similarity or dissimilarity about two processes by comparation. Process distance describes dissimilarity degree of two processes. On the basis of WF-net, this paper proposes explicitly the concept about process distance, and establishes the measurement model on the angle of the control flow and its resources to measure the distance of two processes. The conclusion can be got through analysis: in several processes,the nearest or farthest process compared with a specified process can be found.It proves that the proposed distance measure is feasible.

Key words: process distance, measurement model, process, Work Flow（WF）-net, Extended-Transition Adjacency Relations（E-TARs）