Dealing with interdependency among NFR using ISM

Non-functional requirements (nfrs) determine the utility and effectiveness of a framework. due to the subjective nature and complexity of nfrs,it is quite unrealistic to concentrate on each nfr. consequently,agreement between groups of cross-utilitarian and cross functional decision makers are important. this paper models nfrs in the form of soft goal interdependency digraph (sid). the sid is based on interpretive structural modelling (ism) method which in turn utilises micmac (matrices impacts croise’s multiplication appliquée a un classement) and ahp (analytic hierarchy process) approaches for identification of critical nfrs. these objectives allow the analysts and developers to accept the best possible trade off choices among nfrs. this is discussed using a general case of cafeteria ordering framework. the proposed model contrasts well with other positioning methodologies. © 2017 universiti putra malaysia press.