层次分析法（Analytic Hierarchy Process，简称AHP）是对一些较为复杂、较为模糊的问题作出决策的简易方法，它特别适用于那些难于完全定量分析的问题。它是美国运筹学家T. L. Saaty 教授于70年代初期提出的一种简便、灵活而又实用的多准则决策方法。-The analytic hierarchy process (Analytic Hierarchy Process, referred to as AHP) is a simple method to make the decision of some of the more complex, more fuzzy problem, it is especially suitable for those is difficult to quantitatively analyze the problem. It is a simple, flexible and practical multi criteria decision making method of the United States of America operations research scientist T. L. Saaty Professor proposed in the early 70 s