Software Process and Product ISO Standards - Dr. Rafa E. AL ...

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Software Process and Product ISO Standards: A Comprehensive Survey 292Figure 4 shows the different views of product quality and associated measures at differentstages in the software lifecycle [4].Figure 4: Quality in the Software Lifecycle [4].User QualityNeedsUse and feedbackQuality inuseContribute to specifyingExternal QualityRequirementValidationIndicatesExternalQualityContribute to specifyingIndicatesInternal QualityRequirementVerificationInternalQualityThe second document of the ISO 9126 series – external metrics – contains a basic set ofmeasures for each external quality sub-characteristic, explanations of how to apply and use softwareexternal quality metrics, and examples of how to apply these metrics during the software productlifecycle [5]. The external measures are classified by the characteristics and the sub-characteristicsdefined in ISO 9126-1.The third document of the ISO 9126 series – internal metrics – contains an inventory ofmeasures for each internal quality sub-characteristic, explanations of the application of these metrics,and examples of how to use these metrics in the software product lifecycle [6]. Also, the internalmetrics are classified by the characteristics and the sub-characteristics defined in ISO 9126-1.Finally, the fourth document of the ISO 9126 series – quality in use metrics – contains a basicset of metrics for each quality in use characteristic, explanations of how to apply them, and examplesof how to use them in the software product lifecycle [7]. The quality in use metrics are classified by thecharacteristics defined in ISO 9126-1.2.2. ISO 14598: Software Product EvaluationIn addition to the four documents of the ISO 9126 series, the ISO also published a set of documents forguidelines on how to apply ISO 9126, which is called ISO 14598 and named as software productevaluation. The ISO 14598 series of standards consists of six parts:1. ISO 14598-1: General overview [8].2. ISO 14598-2: Planning and management [9].3. ISO 14598-3: Process for developers [10].4. ISO 14598-4: Process for acquirers [11].5. ISO 14598-5: Process for evaluators [12].6. ISO 14598-6: Documentation of evaluation modules [13].The part-1 of the ISO 14598 series of standards – general overview – contains an overview ofthe contents and the objectives of the other parts, defines a number of terms used in the other parts, andillustrates the relationship between the other five parts, as in Figure 5 [8]. In addition, it clarifies therelationship between the quality model in the ISO 9126 part-1 and the ISO 14598 series of standards,
293 Rafa E. Al-Qutaish and Khalid Al-Sarayrehincludes the general requirements for the specification and the evaluation of the software quality, andpresents a framework to evaluate the quality of all types of software product [8].Figure 5: Relationship between the Evaluation Process and the Evaluation Support [8].Evaluation ProcessISO/IEC 14598-3Process for DevelopersISO/IEC 14598-2Evaluation SupportISO/IEC 14598-6ISO/IEC 14598-4Process for AcquirersISO/IEC 14598-5Process for EvaluatorsPlanningandManagementDocumentation ofEvaluationModulesFigure 5 illustrates the relationship between the parts 3, 4, and 5 (evaluation process) and theparts 2 and 6 (evaluation support) of the ISO 14598 series of standards [8].The ISO 14598 part-2 – planning and management – presents details about the planning andmanagement requirements that are associated with the software product evaluation, and it defines therequirements which should be provided by the organization in order to ensure the success of theevaluation process [9].The part-3 of the ISO 14598 series of standards – process for developers – may be used toapply the concepts explained in the ISO 9126 series of standards and the ISO 14598 parts 1, 2, and 6[10]. It gives recommendations and requirements for the practical implementation of the softwareproduct evaluation, in parallel with the development, by the developer [10]. This part of the ISO 14598series of standards may be used by the project manager, software designer, quality assurance audit,maintainer, and/or software acquirer [10].The part-4 of the ISO 14598 series of standards – process for acquirers – includes requirements,recommendations and guidelines for the systematic measurement, assessment and evaluation of thesoftware product quality [11]. The evaluation process explained in this part of the ISO 14598 series ofstandards helps to meet the objectives and the goals of deciding on the acceptance of a single productor for selecting a product [11]. This part-4 of the ISO 14598 series may be used by the projectmanager, system engineers, software engineering staff, and/or end users [11].The ISO 14598 part-5 – process for evaluators – may be used to apply the concepts explainedin ISO 9126 series of standards by providing requirements and recommendations for the practicalimplementation of the software product evaluation when several parties need to understand, accept, andtrust the evaluation results [12]. The evaluation process explained in this part of the ISO 14598 seriesdefines the activities needed to analyze the evaluation requirements, to specify, design, and perform theevaluation actions and to conclude the evaluation of any kind of software product [12]. This part of theISO 14598 series may be used by testing laboratory evaluators, software suppliers, software acquirer,software users, and/or certification bodies [12].Finally, the part-6 of the ISO 14598 series of standards – documentation of evaluation modules– clarifies and defines the contents, the formation, and the structure of the documentation to be used toillustrate an evaluation module [13]. This part of the ISO 14598 series may be used by testinglaboratories, research institutions and organizations, and any others who need to produce newevaluation modules [13].
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