范围蔓延在软件项目中经常出现,成为软件项目失败的一个主要原因。通过系统分析,总结了导致软件项目范围蔓延的可能原因,并基于ISM方法对这些原因进行分析,将混乱无序的原因以层次组织起来,最后基于TP技术分析并提出了防止软件项目范围蔓延的相应对策。 Spread of the scope of the software project often appear as a major failure of the software project. Through systematic analysis, it summarizes the possible reasons that lead to the spread of software project scope, analyzes these reasons based on ISM method, organizes the causes of chaos and disorder into different levels, finally analyzes and proposes the measures to prevent the scope of software project from spreading Corresponding countermeasures.