An Early Identification Specification and Modelling of Non Functional Requirments using SRS Document

Abstract

Software requirement include both functional and non-functional requirements newline(NFRs), but requirement documentation primarily focused on functional requirements newlineand often treated NFRs in an adhoc way because of their complex and unrealistic newlinenature. newlineAs NFRs plays a very significant role in ascertaining the quality of yet to be newlinedeveloped software. There is a need to identify, specify and model the NFRs at early newlinestages of development. In order to reach out this objective, the work proposed in this newlinethesis is divided in four modules. First - an approach on the basis of integration of newlineInterpretive Structural Modelling (ISM) and Analytic Hierarchy Process (AHP), with newlinesole motive to bargain interdependencies between NFRs by generating Softgoal newlineInterdependency Digraph (SID) and Cross Impact Matrix Multiplication (MICMAC) newlineanalysis to figure out critical NFRs has been proposed. Second - to keep these newlineidentified critical NFRs in priority list of developers, they are further specified with newlineproposed artifacts in use case and formal reference model to incorporate the required newlinedetail in Software Requirement Specification document. Third these NFR s are newlineformally modelled and finally, for the insight into the distinguished features of the newlineproposed extended version of SRS, cognitive dimensions are considered which proves newlinethat proposal not only treats NFRs informally and formally but also supports changing newlineneeds of many different classes of users. newlineIn order to examine the credibility of various proposals made in the thesis, it is newlinecategorically compared with other built up and prevalent methodologies proposed in newlinethe past. In addition, the proposal is also illustrated with an example and metric has beenformulated. newline