关键词: 多元逐步回归分析, 知识复用, 情形属性, 层次分析法, 权重

Abstract: The software engineering knowledge reuse，is helpful for the improvement of the quality of software entire implementation process.It will support a solid foundation for the development of software project when we can select the high applicable software engineering knowledge.Situation is the foundation of sharing and reusing software engineering knowledge.However，the current software engineering knowledge reuse involves many practice situation factors.Besides，the software engineering knowledge has already been in a stage of richness and diversity.So，how to ensure the remarkable situation factors is a complex problem when select the applicable software engineering knowledge.This paper has studied one method that based on statistics which can help us to identify the remarkable influential factors of software engineering knowledge.Also，the method is the foundation of applicable assessment to the software engineering knowledge.Firstly，the paper concludes the relative mathematics conceptions and proposes two judge indexes.Then，the paper proposes a method that uses the statistic data to measure the two judge indexes.Based on this，the paper proposes the method to measure the remarkable situation attribute weight.Finally，this paper applies this method on the recognition of the prototyping knowledge reusing influential factors，and the application result indicates that this method has the good feasibility and the usability.

Key words: multiple stepwise regression analysis, knowledge reuse, situation attribute, Analytical Hierarchy Process（AHP）, weight