1、BS ISO/IEC 25022:2016Systems and softwareengineering Systems andsoftware quality requirementsand evaluation (SQuaRE) Measurement of quality in useBSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06BS ISO/IEC 25022:2016 BRITISH STANDARDNational forewordThis British Stand
2、ard is the UK implementation of ISO/IEC25022:2016. It supersedes PD ISO/IEC TR 9126-4:2004 which iswithdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee IST/15, Software and systems engineering.A list of organizations represented on this committee can beobtained on re
3、quest to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2016. Published by BSI StandardsLimited 2016ISBN 978 0 580 82354 1ICS 35.080Compliance with a British Sta
4、ndard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 June 2016.Amendments issued since publicationDate Text affectedBS ISO/IEC 25022:2016Systems and software engineering Systems and software qua
5、lity requirements and evaluation (SQuaRE) Measurement of quality in useIngnierie des systmes et du logiciel Exigences de qualit et valuation des systmes et du logiciel (SQuaRE) Mesurage de la qualit lors de lutilisationINTERNATIONAL STANDARDISO/IEC25022Reference numberISO/IEC 25022:2016(E)First edit
6、ion2016-06-15 ISO/IEC 2016BS ISO/IEC 25022:2016ii ISO/IEC 2016 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO/IEC 2016, Published in SwitzerlandAll rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, elect
7、ronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or ISOs member body in the country of the requester.ISO copyright officeCh. de Blandonnet 8 CP 401CH-1214 Vernier
8、, Geneva, SwitzerlandTel. +41 22 749 01 11Fax +41 22 749 09 47copyrightiso.orgwww.iso.orgISO/IEC 25022:2016(E)BS ISO/IEC 25022:2016ISO/IEC 25022:2016(E)Foreword ivIntroduction v1 Scope . 12 Conformance . 23 Normative references 24 Terms and definitions . 25 Abbreviated terms 66 Use of quality in use
9、 measures. 66.1 Applications of quality in use . 66.2 Measurement of quality in use 76.3 Interpretation of quality in use measures . 86.4 Selecting appropriate quality in use measures . 96.5 Aspects of quality in use described in other International Standards 97 Format used for documenting the quali
10、ty measures . 98 Quality in use measures .108.1 General 108.2 Effectiveness measures . 108.3 Efficiency measures . 128.4 Satisfaction measures 138.4.1 General. 138.4.2 Usefulness measures .148.4.3 Trust measures .158.4.4 (User experience) pleasure measures 158.4.5 (Ergonomic) comfort measures . 168.
11、5 Freedom from risk measures 168.5.1 General. 168.5.2 Economic risk mitigation measures .188.5.3 Health and safety risk mitigation measures 198.5.4 Environmental risk mitigation measures 208.6 Context coverage measures 218.6.1 General. 218.6.2 Context completeness measures .218.6.3 Flexibility measu
12、res .21Annex A (informative) Examples of how to measure context coverage.23Annex B (informative) Normalization of quality in use measures .25Annex C (informative) Use of ISO/IEC 25022 for measuring usability in ISO 924111 .30Annex D (informative) Quality in use evaluation process .31Annex E (informa
13、tive) Relationship between different quality models .37Annex F (informative) Quality measurement concepts .38Annex G (informative) QMEs used to define quality measures 39Bibliography .40 ISO/IEC 2016 All rights reserved iiiContents PageBS ISO/IEC 25022:2016ISO/IEC 25022:2016(E)ForewordISO (the Inter
14、national Organization 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 establis
15、hed by the respective 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 fi
16、eld of information technology, ISO and IEC have established a joint technical committee, ISO/IEC JTC 1.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particular the different approval criteria needed for
17、 the different types of document should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO
18、and IEC shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso.org/patents).Any trade name used in this
19、 document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO principles in the Technical Barriers to
20、Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/IEC JTC 1, Information technology, SC 7, Software and systems engineering.This first edition of ISO/IEC 25022, which is a part of the SQuaRE series of standards, cancels and repl
21、aces ISO/IEC 9126-4:2004, with the following changes: measures are given for the revised quality model for quality in use in ISO/IEC 25010; measures are categorized as generally applicable, could be used in a wide range of situations, or specialized for specific needs; annexes that were common to IS
22、O/IEC 9126-2, ISO/IEC 9126-3, and ISO/IEC 9126-4 have been removed (and might be included in a future revision of ISO/IEC 25020).The SQuaRE series of standards consists of the following divisions under the general title Systems and software quality requirements and evaluation: ISO/IEC 2500n Quality
23、Management Division ISO/IEC 2501n Quality Model Division ISO/IEC 2502n Quality Measurement Division ISO/IEC 2503n Quality Requirements Division ISO/IEC 2504n Quality Evaluation Division ISO/IEC 25050 25099 SQuaRE Extension DivisionAnnexes A, B, C, D, E, F and G are for information only.iv ISO/IEC 20
24、16 All rights reservedBS ISO/IEC 25022:2016ISO/IEC 25022:2016(E)IntroductionThis International Standard is a part of the SQuaRE series of International Standards. It provides a set of measures for the characteristics of quality in use (defined in ISO/IEC 25010) that can be used for specifying qualit
25、y in use requirements (in conjunction with ISO/IEC 25030) and measuring and evaluating quality in use (in conjunction with ISO/IEC 25040 and ISO/IEC 25041).The quality measures included in this International Standard were selected based on their practical value. They are based on established practic
26、e (including, for example, Reference 17). They are not intended to be exhaustive, and users of this International Standard are encouraged to refine them, if necessary.Quality Measurement DivisionThis International Standard is a part of ISO/IEC 2502n Quality Measurement Division of SQuaRE series that
27、 currently consists of the following International Standards: ISO/IEC 25020 Measurement reference model and guide: provides a reference model and guide for measuring the quality characteristics defined in ISO/IEC 2501n Quality Model Division; ISO/IEC 25021 Quality measure elements: provides a format
28、 for specifying Quality Measure Elements and some examples of QMEs that can be used to construct software quality measures; ISO/IEC 25022 Measurement of quality in use: provides measures, including associated measurement functions for the quality characteristics in the quality in use model; ISO/IEC
29、25023 Measurement of system and software product quality: provides measures, including associated measurement functions and QMEs for the quality characteristics in the product quality model; ISO/IEC 25024 Measurement of data quality: provides measures, including associated measurement functions and
30、QMEs for the quality characteristics in the data quality model.Figure 1 depicts the relationship between this International Standard and the other standards in the ISO/IEC 2502n division. ISO/IEC 2016 All rights reserved vBS ISO/IEC 25022:2016ISO/IEC 25022:2016(E)ISO/IEC 25020: Measurement reference
31、 model and guideISO/IEC 25022: Measurement of quality in use -Revision of 9126-4ISO/IEC 25021: Quality measure Revision of ISO/IEC 25024: Measurement of data quality ISO/IEC 25023: Measurement of system and software product quality -Revision ISO/IEC 25025: Measurement of IS Service qualityISO/IEC 25
32、021 is used for developing and specifying 25020 gives guide for developing and specifying Quality MeasuresISO/IEC 9126-4of ISO/IEC 9126-2 an explanation of how quality in use is measured.This International Standard provides a suggested set of quality in use measures to be used with the quality in us
33、e model in ISO/IEC 25010. They are not intended to be an exhaustive set.It includes as informative annexes examples of how to measure context coverage (Annex A), options for normalising quality in use measures (Annex B), use of ISO/IEC 25022 for measuring usability in ISO 9241-11 (Annex C), a qualit
34、y in use evaluation process (Annex D), the relationship between different quality models (Annex E), and quality measurement concepts (Annex F).The measures are applicable to the use of any human-computer system, including both computer systems in use and software products that form part of the syste
35、m.This International Standard does not assign ranges of values of the measures to rated levels or to grades of compliance because these values are defined for each system or product depending, on the context of use and users needs.Some attributes could have a desirable range of values, which does no
36、t depend on specific user needs but depends on generic factors, for example, human cognitive factors.The proposed quality in use measures are primarily intended to be used for quality assurance and management of systems and software products based on their effects when actually used. The main users
37、of the measurement results are people managing development, acquisition, evaluation, or maintenance of software and systems.The main users of this International Standard are people carrying out specification and evaluation activities as part of the following: development: including requirements anal
38、ysis, design, and testing through acceptance during the life cycle process; quality management: systematic examination of the product or computer system, for example, when evaluating quality in use as part of quality assurance and quality control; supply: a contract with the acquirer for the supply
39、of a system, software product, or software service under the terms of a contract, for example, when validating quality at qualification test; acquisition: including product selection and acceptance testing, when acquiring or procuring a system, software product, or software service from a supplier;
40、maintenance: improvement of the product based on quality in use measures. ISO/IEC 2016 All rights reserved 1BS ISO/IEC 25022:2016ISO/IEC 25022:2016(E)2 ConformanceAny quality requirement specification or quality evaluation that conforms to this International Standard shall:a) select the quality in u
41、se characteristics and/or subcharacteristics to be specified or evaluated as defined in ISO/IEC 25010;b) for each selected characteristic or subcharacteristic, all the General (G) quality measures defined in Clause 8 should be used. If any are excluded, then provide a rationale;c) select any Special
42、 (S) quality measures that are relevant;d) if any quality measure is modified, provide the rationale for any changes;e) define any additional quality measures to be used that are not included in this International Standard;f) define precisely how each quality measure is operationalized (for example
43、details of the measurement method or questionnaire used).NOTE It is important to use the same measurement method when making comparisons.3 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For date
44、d references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO/IEC 25010, Systems and software engineering Systems and software Quality Requirements and Evaluation (SQuaRE) System and software quality models4
45、 Terms and definitionsFor the purposes of this document, the terms and definitions given in ISO/IEC 25000 and ISO/IEC 25010 and the following apply.NOTE The essential definitions from ISO/IEC 25000 SQuaRE series and the other ISO standards are reproduced here.4.1context completenessdegree to which a
46、 product or system can be used with the required levels of effectiveness, efficiency, satisfaction, and freedom from risk in each of the specified contexts of useNote 1 to entry: Context completeness is a subcharacteristic of context coverage.SOURCE: ISO/IEC 25010:2011, modified Added “the required
47、levels of” and changed “all” to “each of” for clarification.4.2context coveragedegree to which a product or system can be used with effectiveness, efficiency, satisfaction, and freedom from risk in both specified contexts of use and in contexts beyond those initially explicitly identifiedNote 1 to e
48、ntry: Context of use is relevant to both quality in use and some product quality (sub)characteristics (where it is referred to as “specified conditions”).SOURCE: ISO/IEC 25010:2011, 4.1.52 ISO/IEC 2016 All rights reservedBS ISO/IEC 25022:2016ISO/IEC 25022:2016(E)4.3customerrelationship with the supp
49、lier of an organization or person that receives or uses a product or serviceNote 1 to entry: The relationship can include a warranty or agreeing to the terms and conditions of a service.4.4effectivenessaccuracy and completeness with which users achieve specified goalsSOURCE: ISO 9241-11:19984.5efficiencyresources expended in relation to the accuracy and completeness with which users achieve goalsNote 1 to entry: Relevant resources can include time to complete the task (human resources),
