基于工作流挖掘的质量管理过程改进研究

为满足质量管理体系持续改进的要求,提出了基于工作流过程挖掘的质量管理过程改进方案.该方案包括过程日志预处理、过程活动控制图重构和活动转移条件生成3步,其中过程活动控制图的重构是核心.设计了一种启发式算法,以时间段建模活动的执行过程,将两活动执行时间段关系划分为不相交、部分相交和包含3种,并在此基础上设计启发式规则,搜索过程日志中蕴含的活动前序关系,解决了包含复杂的策划-实施-检查-处置循环结构的质量管理过程控制图的重构问题.最后,以质量外审意见处理流程的改进为例,对算法进行了说明和分析.

Research on Quality management process improvement based on workflow mining technology

To satisfy improvement requirements for quality management system,an idea based on workflow-mining technology to support quality management process improvement was presented.This process was divided into three steps,workflow log preprocessing,process activity-control graph reconfiguration and generation of activity transfer conditions.Among them,process activity-control graph reconfiguration was the core step.By modeling the activity execution as an interval,the relationship between two activities' execution durations could be categorized into three kinds,as disjoint,overlapped and contained,and a heuristic algorithm was designed based on this relationship to search activities' sequential relationships contained in workflow log,so that the quality management process model comprising complicated Plan-Do-Check-Action(PDCA)loop structures was reconstructed.Finally,process improvement of external audit reports treatment was used as a case study to illustrate the proposed approach and its performance.