基于模糊理论的软件寿命周期费用评价模型

软件寿命周期费用评价模型涉及到软件开发、使用和维护过程中各种资源最有效利用的权衡分析。由于软件开发不是一门严谨的精确科学,往往存在大量具有不确定性的需求以及许多未知和不确定因素,所有这些都给软件寿命周期费用评价带来模糊效用。本文将模糊理论应用于软件寿命周期费用的评价,给出了从评价属性模糊值的确定、模糊评价模型的建立,到模型求解和最优方案选择的模糊评价方法,并通过对一个算例的分析,证明了该模型的可行性。

Model of Software Lifecycle Cost Assessment Based on Fuzzy Set Theory

Methods of Software lifecycle cost assessment are concerned with the tradeoff analysis methods of the most effective use of the various resources in software development,operation and maintenance processes.Since software development is not a exact science,often has plenty of indefinite and uncertain factors,all those brought fuzzy and uncertain effectiveness to software system assessment.This paper applied fuzzy set theory to software lifecycle cost assessment, presented a fuzzy assessment method which includes defining the fuzzy attributes,the fuzzy assessment model and its algorithm for solving the model.This paper demonstrated the feasibility of this method through analyzing an example.