Trustworthy Software Non-Functional Requirements Tradeoff Model based on Linguistic Variable Fuzzy Evaluation
Zhu Ming-xu · Shuxue de shijian yu renshi · 2014
This paper proposes a Fuzzy Qualitative and Quantitative Softgoal Interdependency Graphs(FQQSIG) model for Non-Functional Requirements(NFRs) relationships tradeoff analysis in Trustworthy Software(TS).Firstly described an NFRs criteria decomposition hierarchy graphic and collect the important degree assessment by experts in the form of fuzzy linguistic variables.Secondly,it transformed the qualitative assessment into quantitative data by using trapezoidal fuzzy number and a simulation algorithm named RAGE(RAndom GEneration).Finally,this paper proposed a Relationship Matrix algorithm to calculate the NFRs value contribution which are used in NFRs trade-off.