Conference Paper

Improving Quality of Functional Requirements by Measuring Their Functional Size.

DOI: 10.1007/978-3-540-89403-2_24 Conference: Software Process and Product Measurement, International Conferences: IWSM 2008, Metrikon 2008, and Mensura 2008, Munich, Germany, November 18-19, 2008. Proceedings
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ABSTRACT For many years, the software industry has been applying different types of reviews on their requirements documents to identify and remove defects that would other- wise propagate in the development life cycle, leading to rework and extra cost to fix at later phases. An inspection is a review technique known to be efficient at identi- fying defects but, like any other review technique, it does not guarantee that all de- fects are found. Requirements documents are also used as input for the measure- ment of the software size for estimation purposes; when carrying this measurement process, practitioners have often noticed defects in the requirements. This paper reports on a research project investigating the contribution of the meas- urers in finding defects in requirements documents. More specifically, this paper describes an experiment where the same requirements document was inspected by a number of inspectors as well as by a number of measurers; the number and types of defects found by both inspectors and measurers are compared and discussed. For this experiment, the measurers used the COSMIC - ISO 19761 to measure the func- tional size and find defects. Results show significant increase in defects identifica- tion when both inspection and functional size measurement are used to find and re- port defects.

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