BS ISO IEC 25040:2011 pdf 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 sofware 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.
●The operator: The individual or organisation, which operates a system of which the sofware product is a part, can use software quality evaluation to validate that quality requirements are met under variable operating conditions, and to provide feedback on the need for any changes to those responsible for maintenance.
●The maintainer: The individual or organisation, which maintains a system of which the software product is a part, can use software evaluation to validate that quality requirements are still met, and requirements for maintainability and portability are achieved.BS ISO IEC 25040 pdf download.