Non functional requirements in software engineering presents a systematic and pragmatic approach to building quality into software systems systems must exhibit software quality attributes such as accuracy performance security and modifiability. Non functional requirements in software engineering presents a scientific and pragmatic technique to developing high high quality into software methods. Non functional requirements in software engineering demonstrates the applicability of the nfr framework to a variety of nfrs domains system characteristics and application areas this will help readers apply the framework to nfrs and domains of particular interest to them. Non functional requirements nfrs are like the step child to functional requirmeents but this book finally gives nfrs their due it is a must read for any person in the software systems engineering community. Essentially a software systems utility is determined by both its functionality and its non functional characteristics such as usability flexibility performance interoperability and security nonetheless there has been a lop sided emphasis in the functionality of the software even though the
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