BS ISO IEC 25040:2011 pdf free download – Systems and software engineering – Systems and software Quality Requirements and Evaluation (SQuaRE) – Evaluation process
5.3 Roles
Different roles including acquirers, developers, independent evaluator, suppliers, operators, and maintainers have different purposes.
• The acquirer: When acquiring a custom made software product, the acquirer can establish quality in use requirements and software quality requirements, can specify the requirements to the supplier, and can evaluate potential purchases against these requirements before acquisition. When acquiring a product to be developed, the objective of specifying quality requirements is to ensure that the product meets the stated and implied needs of the user. When purchasing a software product, evaluation can be used to compare alternative products and to ensure that the selected product meets the quality requirements.
• The developer: When implementing a custom made software product, the developer can evaluate the intermediate software products or final product in order to ensure the developed software quality. The developer can use the results of software product quality evaluation to ensure that products meet required quality criteria, which can be set by the acquirer, or by comparison with other products.
• The independent evaluators: When evaluating a target software product, the independent evaluator can evaluate the intermediate software products or final product in order to ensure the software quality. The evaluation process for independent evaluation approach provides requirements and recommendations for the practical implementation of software product evaluation, when several parties need to understand, accept and trust evaluation results. It is used by evaluators carrying out an independent evaluation of a software product. This evaluation could be performed at the request of a developer, acquirer or some other party.
• The supplier: The supplier can use the results of software product evaluation to ensure that products meet required quality criteria, which can be set by the acquirer, or by comparison with other products.
6.1 General requirements
The evaluator shall implement the activities and tasks described in clause 6 in accordance with applicable organization policies and procedures with respect to the software product quality evaluation process (see Figure 3). NOTE 1 Figure 3 is a simplified view and does not show all iterations relating to specific activities or between activities. There shall be an infrastructure including tools and technology in the evaluator’s organization suitable for carrying out software product quality evaluation. NOTE 2 ISO/IEC 25001 provides guidance on planning and management organizational aspects related to software product quality evaluation. There shall be an infrastructure that allows for data collection and process modifications based on data analysis. The personnel involved in the evaluation shall have the necessary skills and training. In order to ensure repeatability, reproducibility, impartiality and objectivity of the evaluation results, the evaluator shall act in an organisational context that provides all necessary assurance to obtain sufficient quality for its activities.