On Non-Functional Requirements in Software Engineering

  • Lawrence Chung
  • Julio Cesar Sampaio do Prado Leite
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5600)


Essentially a software system’s 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 functionality is not useful or usable without the necessary non-functional characteristics. In this chapter, we review the state of the art on the treatment of non-functional requirements (hereafter, NFRs), while providing some prospects for future directions.


Non-functional requirements NFRs softgoals satisficing requirements engineering goal-oriented requirements engineering alternatives selection criteria 


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Copyright information

© Springer-Verlag Berlin Heidelberg 2009

Authors and Affiliations

  • Lawrence Chung
    • 1
  • Julio Cesar Sampaio do Prado Leite
    • 2
  1. 1.Department of Computer ScienceThe University of Texas at DallasUSA
  2. 2.Departamento de InformáticaPontifícia Universidade Católica do Rio de JaneiroBrazil

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