A Meta-model for the Assessment of Non-Functional Requirement Size

Non-functional requirements (NFRs) pose unique challenges in estimating the effort it would take to implement them. This is mainly because of their unique nature; NFRs are subjective, relative, interactive and tending to have a broad impact on the system as a whole. Nevertheless, it is crucial, when...

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Bibliographic Details
Main Authors: Kassab, M., Daneva, M., Ormandjieva, O.
Format: Conference Proceeding
Language:English
Subjects:
Application software
COSMIC
effort estimation
Extraterrestrial measurements
functional size
Linear accelerators
Mars
meta-model
Multidimensional systems
NFR
Non Functional Requirements
Project management
Scattering
Size measurement
Software engineering
Software systems
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Summary:Non-functional requirements (NFRs) pose unique challenges in estimating the effort it would take to implement them. This is mainly because of their unique nature; NFRs are subjective, relative, interactive and tending to have a broad impact on the system as a whole. Nevertheless, it is crucial, when making decisions about the scope of software by given resources and budget, to furnish a justifying and quantitative analysis based on both functional requirements (FRs) and NFRs. This paper presents a meta-model which complements the FR dimension with the NFRs as another dimension to be used in effort estimation approaches. The meta-model is deployed to extend the use of the COSMIC functional size measurement method to measure the size of NFRs, as effort is a function of size. We report on a case study to demonstrate our approach in context.
ISSN:1089-6503
2376-9505
DOI:10.1109/SEAA.2008.58