中文摘要：

关键过程域是项目管理成熟度模型中的重要概念,也是提升企业项目管理水平的关键突破点。针对用数理统计方法选取关键过程域的不足,结合粗糙集理论方法对比进行了优化,实践证明这种统计方法与粗糙集相结合的方法使结果更加有效。

英文摘要：

Key process area is not only an important concept in project management maturity models,but also the key breakthrough point to improve organizations＇project management level.For the shortage of mathematical statistics in the key process areas,this paper gives an optimization with rough set theory.It＇s proved that the effect is better.