A New Software Quality Model for Evaluating COTS Components
Titel:
A New Software Quality Model for Evaluating COTS Components
Auteur:
Adnan Rawashdeh Bassem Matalkah
Verschenen in:
Journal of computer science
Paginering:
Jaargang 2 (2006) nr. 4 pagina's 373-381
Jaar:
2006
Inhoud:
Studies show that COTS-based (Commercial off the shelf) systems that are being builtrecently are exceeding 40% of the total developed software systems. Therefore, a model that ensuresquality characteristics of such systems becomes a necessity. Among the most critical processes inCOTS-based systems are the evaluation and selection of the COTS components. There are severalexisting quality models used to evaluate software systems in general; however, none of them isdedicated to COTS-based systems. In this contribution, an analysis study has been carried out onseveral existing software quality models, namely: McCall’s, Boehm, ISO 9126, FURPS, Dromey,ISO/IEC TR 15504-2 1998(E), Triangle and Quality Cube, for the purpose of evaluating them anddefining a ground to build a new model specializing in evaluating and selecting COTS components.The study also outlines limitations found in the existing models, such as the tendency to ignore acertain quality feature like Functionality or the failure to describe how the quality measurement inthese models has been carried out. As a result of this analysis, a new model has been built that supportsa standard set of quality characteristics suitable for evaluating COTS components, along with newlydefined sets of sub-characteristics associated with them. The new model avoids some of the limitationsfound in the existing models. The new model ignores quality characteristics that are not applicable toCOTS components and is empowered with new ones that are. In addition, it matches the appropriatetype of stakeholders with corresponding quality characteristics; such a feature is missing in all existingmodels. The objective of the new model is to guide organizations that are in the process of buildingCOTS-based systems to evaluate and choose the appropriate products, and that is essential to thesuccess of the entire system.
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