摘要： 如何快速有效地在构件库中查询到满意的构件，人们大都采用经验化的方法．该文基于ＮＡＴＯ标准的构件库，构造了一个可以帮助构件复用者更好的查询构件库的数据模型，并分析了该模型的建立和动态更新方法．

关键词: 构件库, 决策支撑树, 功能集

Abstract: Software component rousers only have experiential ways to find the wanted component in a given component library so far. This essay will build a data model based on NATO standands-based component librarys to help rousers find the aim components more fastly and easily. The dynamit adjust of the data model is also introduced with some algorithms.