Usability inspection methods
Object Oriented Design Measurement
Object Oriented Design Measurement
Crosscutting quality attributes for requirements engineering
SEKE '02 Proceedings of the 14th international conference on Software engineering and knowledge engineering
Software Metrics: A Rigorous and Practical Approach
Software Metrics: A Rigorous and Practical Approach
Representing and Using Nonfunctional Requirements: A Process-Oriented Approach
IEEE Transactions on Software Engineering - Special issue on knowledge representation and reasoning in software development
Quantitative evaluation of software quality
ICSE '76 Proceedings of the 2nd international conference on Software engineering
ProcessNFL: A Language for Describing Non-functional Properties
HICSS '02 Proceedings of the 35th Annual Hawaii International Conference on System Sciences (HICSS'02)-Volume 9 - Volume 9
The Declarative Problem Frame: Designing Systems that Create and Use Norms
IWSSD '00 Proceedings of the 10th International Workshop on Software Specification and Design
A comedy of errors: the London Ambulance Service case study
IWSSD '96 Proceedings of the 8th International Workshop on Software Specification and Design
ERP Requirements Engineering Practice: Lessons Learned
IEEE Software
RE '04 Proceedings of the Requirements Engineering Conference, 12th IEEE International
Goal-Oriented Requirements Engineering, Part II
RE '06 Proceedings of the 14th IEEE International Requirements Engineering Conference
IEEE Transactions on Software Engineering
Using goals and quality models to support the matching analysis during COTS selection
ICCBSS'05 Proceedings of the 4th international conference on COTS-Based Software Systems
A more expressive softgoal conceptualization for quality requirements analysis
ER'06 Proceedings of the 25th international conference on Conceptual Modeling
Using PSU for Early Prediction of COSMIC Size of Functional and Non-functional Requirements
IWSM/Metrikon/Mensura '08 Proceedings of the International Conferences on Software Process and Product Measurement
A standards-based reference framework for system portability requirements
Computer Standards & Interfaces
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Non-functional requirements (NFRs) of software systems are an important source of uncertainty in effort estimation. Furthermore, quantitatively approaching NFR early in a project is difficult. This paper makes a step towards reducing the impact of uncertainty due to NFRs. It offers a new generic classification of the NFRs, and a NFR size measurement method (NFSM) that incorporates NFRs into the functional size quantification process. We chose the NFR framework as a vehicle to integrate NFRs into the requirements modeling process and to apply quantitative assessment procedures. Our solution proposal also rests on the functional size measurement method, COSMIC-FFP, adopted in 2003 as the ISO/IEC 19761 standard. We discuss the advantages of our approach and the open questions related to its design as well.