1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS ISO/IEC 25010:2011Systems and software engineering Systems and software Quality Requirements and Evaluation (SQuaRE) System and software quality modelsBS ISO/IEC 25010:2011 BR
2、ITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO/IEC25010:2011. It supersedes BS ISO/IEC 9126-1:2001 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee IST/15, Software and systems engineering.A list of organizations repr
3、esented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 70223 5ICS 35.080Compliance with a British Standard cannot confer immu
4、nity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2011.Amendments issued since publicationDate Text affectedBS ISO/IEC 25010:2011Reference numberISO/IEC 25010:2011(E)ISO/IEC 2011INTERNATIONAL STANDARD ISO/IEC2
5、5010First edition2011-03-01Systems and software engineering Systems and software Quality Requirements and Evaluation (SQuaRE) System and software quality models Ingnierie des systmes et du logiciel Exigences de qualit et valuation des systmes et du logiciel (SQuaRE) Modles de qualit du systme et du
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9、ntral Secretariat at the address given below. COPYRIGHT PROTECTED DOCUMENT ISO/IEC 2011 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without perm
10、ission in writing from either ISO at the address below or ISOs member body in the country of the requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO/IEC 2011 All rights
11、reservedBS ISO/IEC 25010:2011ISO/IEC 25010:2011(E) ISO/IEC 2011 All rights reserved iiiContents Page Foreword iv Introduction.v 1 Scope1 2 Conformance .2 3 Quality model framework2 3.1 Quality models.2 3.2 Quality in use model .3 3.3 Product quality model.3 3.4 Targets of the quality models 4 3.5 Us
12、ing a quality model .5 3.6 Quality from different stakeholder perspectives .5 3.7 Relationship between the models .7 4 Terms and definitions .8 4.1 Quality in use model .8 4.2 Product quality model.10 4.3 General .16 4.4 Terms and definitions from ISO/IEC 25000.18 Annex A (informative) Comparison wi
13、th the quality model in ISO/IEC 9126-1.21 Annex B (informative) Example of mapping to dependability24 Annex C (informative) Using the quality model for measurement.26 Bibliography33 BS ISO/IEC 25010:2011ISO/IEC 25010:2011(E) iv ISO/IEC 2011 All rights reservedForeword ISO (the International Organiza
14、tion for Standardization) and IEC (the International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards through technical committees established by the respec
15、tive organization to deal with particular fields of technical activity. ISO and IEC technical committees collaborate in fields of mutual interest. Other international organizations, governmental and non-governmental, in liaison with ISO and IEC, also take part in the work. In the field of informatio
16、n technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of the joint technical committee is to prepare International Standards. Draft International S
17、tandards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be t
18、he subject of patent rights. ISO and IEC shall not be held responsible for identifying any or all such patent rights. ISO/IEC 25010 was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology, Subcommittee SC 7, Software and systems engineering. This first edition of ISO/IEC 2501
19、0 cancels and replaces ISO/IEC 9126-1:2001, which has been technically revised. ISO/IEC 25010 is a part of the SQuaRE series of International Standards, which consists of the following divisions: Quality Management Division (ISO/IEC 2500n), Quality Model Division (ISO/IEC 2501n), Quality Measurement
20、 Division (ISO/IEC 2502n), Quality Requirements Division (ISO/IEC 2503n), Quality Evaluation Division (ISO/IEC 2504n), SQuaRE Extension Division (ISO/IEC 25050 ISO/IEC 25099). BS ISO/IEC 25010:2011ISO/IEC 25010:2011(E) ISO/IEC 2011 All rights reserved vIntroduction Software products and software-int
21、ensive computer systems are increasingly used to perform a wide variety of business and personal functions. Realization of goals and objectives for personal satisfaction, business success and/or human safety relies on high-quality software and systems. High-quality software products and software-int
22、ensive computer systems are essential to provide value, and avoid potential negative consequences, for the stakeholders. Software products and software-intensive computer systems have many stakeholders including those who develop, acquire, use, or who are customers of businesses using software-inten
23、sive computer systems. Comprehensive specification and evaluation of the quality of software and software-intensive computer systems is a key factor in ensuring value to stakeholders. This can be achieved by defining the necessary and desired quality characteristics associated with the stakeholders
24、goals and objectives for the system. This includes quality characteristics related to the software system and data as well as the impact the system has on its stakeholders. It is important that the quality characteristics are specified, measured, and evaluated whenever possible using validated or wi
25、dely accepted measures and measurement methods. The quality models in this International Standard can be used to identify relevant quality characteristics that can be further used to establish requirements, their criteria for satisfaction and the corresponding measures. This International Standard i
26、s derived from ISO/IEC 9126:1991, Software engineering Product quality, which was developed to support these needs. It defined six quality characteristics and described a software product evaluation process model. ISO/IEC 9126:1991 was replaced by two related multipart standards: ISO/IEC 9126, Softw
27、are engineering Product quality and ISO/IEC 14598, Software engineering Product evaluation. This International Standard revises ISO/IEC 9126-1:2001, and incorporates the same software quality characteristics with some amendments. The scope of the quality models has been extended to include computer
28、systems, and quality in use from a system perspective. Context coverage has been added as a quality in use characteristic, with subcharacteristics context completeness and flexibility. Security has been added as a characteristic, rather than a subcharacteristic of functionality, with subcharacterist
29、ics confidentiality, integrity, non-repudiation, accountability and authenticity. Compatibility (including interoperability and co-existence) has been added as a characteristic. The following subcharacteristics have been added: functional completeness, capacity, user error protection, accessibility,
30、 availability, modularity and reusability. The compliance subcharacteristics have been removed, as compliance with laws and regulations is part of overall system requirements, rather than specifically part of quality. The internal and external quality models have been combined as the product quality
31、 model. When appropriate, generic definitions have been adopted, rather than using software-specific definitions. Several characteristics and subcharacteristics have been given more accurate names. Full details of the changes are in Annex A. This International Standard is intended to be used in conj
32、unction with the other parts of the SQuaRE series of International Standards (ISO/IEC 25000 to ISO/IEC 25099), and with ISO/IEC 14598 until superseded by the ISO/IEC 2504n series of International Standards. BS ISO/IEC 25010:2011ISO/IEC 25010:2011(E) vi ISO/IEC 2011 All rights reservedFigure 1 (adapt
33、ed from ISO/IEC 25000) illustrates the organization of the SQuaRE series representing families of standards, further called divisions. Figure 1 Organization of SQuaRE series of International Standards The divisions within the SQuaRE series are: ISO/IEC 2500n - Quality Management Division. The Intern
34、ational Standards that form this division define all common models, terms and definitions further referred to by all other International Standards from the SQuaRE series. The division also provides requirements and guidance for a supporting function that is responsible for the management of the requ
35、irements, specification and evaluation of software product quality. ISO/IEC 2501n - Quality Model Division. The International Standards that form this division present detailed quality models for computer systems and software products, quality in use, and data. Practical guidance on the use of the q
36、uality models is also provided. ISO/IEC 2502n - Quality Measurement Division. The International Standards that form this division include a software product quality measurement reference model, mathematical definitions of quality measures, and practical guidance for their application. Examples are g
37、iven of internal and external measures for software quality, and measures for quality in use. Quality Measure Elements (QME) forming foundations for these measures are defined and presented. ISO/IEC 2503n - Quality Requirements Division. The International Standards that form this division help speci
38、fy quality requirements, based on quality models and quality measures. These quality requirements can be used in the process of quality requirements elicitation for a software product to be developed or as input for an evaluation process. ISO/IEC 2504n - Quality Evaluation Division. The Internationa
39、l Standards that form this division provide requirements, recommendations and guidelines for software product evaluation, whether performed by evaluators, acquirers or developers. The support for documenting a measure as an Evaluation Module is also present. BS ISO/IEC 25010:2011ISO/IEC 25010:2011(E
40、) ISO/IEC 2011 All rights reserved vii ISO/IEC 25050 25099 SQuaRE Extension Division. These International Standards currently include requirements for quality of Commercial Off-The-Shelf software and Common Industry Formats for usability reports. The quality models in this International Standard can
41、 be used in conjunction with ISO/IEC 12207 and ISO/IEC 15288, particularly the processes associated with requirements definition, verification and validation with a specific focus on the specification and evaluation of quality requirements. ISO/IEC 25030 describes how the quality models can be used
42、for software quality requirements, and ISO/IEC 25040 describes how the quality models can be used for the software quality evaluation process. This International Standard can also be used in conjunction with ISO/IEC 15504 (which is concerned with software process assessment) to provide: a framework
43、for software product quality definition in the customer-supplier process; support for review, verification and validation, and a framework for quantitative quality evaluation, in the support process; support for setting organizational quality goals in the management process. This International Stand
44、ard can be used in conjunction with ISO 9001 (which is concerned with quality assurance processes) to provide: support for setting quality goals; support for design review, verification and validation. BS ISO/IEC 25010:2011BS ISO/IEC 25010:2011INTERNATIONAL STANDARD ISO/IEC 25010:2011(E) ISO/IEC 201
45、1 All rights reserved 1Systems and software engineering Systems and software Quality Requirements and Evaluation (SQuaRE) System and software quality models 1 Scope This International Standard defines: a) A quality in use model composed of five characteristics (some of which are further subdivided i
46、nto subcharacteristics) that relate to the outcome of interaction when a product is used in a particular context of use. This system model is applicable to the complete human-computer system, including both computer systems in use and software products in use. b) A product quality model composed of
47、eight characteristics (which are further subdivided into subcharacteristics) that relate to static properties of software and dynamic properties of the computer system. The model is applicable to both computer systems and software products. The characteristics defined by both models are relevant to
48、all software products and computer systems. The characteristics and subcharacteristics provide consistent terminology for specifying, measuring and evaluating system and software product quality. They also provide a set of quality characteristics against which stated quality requirements can be comp
49、ared for completeness. NOTE Although the scope of the product quality model is intended to be software and computer systems, many of the characteristics are also relevant to wider systems and services. ISO/IEC 25012 contains a model for data quality that is complementary to this model. The scope of the models excludes purely functional properties (see C.6), but it does include functional suitability (see 4.2.1). The scope of application of the quality models includes s
