ISO/IEC/IEEE 26512:2018

INTERNATIONAL ISO/IEC/
STANDARD IEEE
Second edition
2018-06
Systems and software engineering —
Requirements for acquirers and
suppliers of information for users
Ingénierie du logiciel et des systèmes — Exigences pour acquéreurs et
fournisseurs de documentation utilisateur
Reference number
©
ISO/IEC 2018
©
IEEE 2018
© ISO/IEC 2018
© IEEE 2018
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Published in Switzerland
© ISO/IEC 2018 – All rights reserved
ii © IEEE 2018 – All rights reserved

Contents
1 Scope . 1
2 Normative references . 2
3 Terms and definitions . 2
4 Conformance . 7
4.1 General . 7
4.2 Definition of conformance . 7
4.3 Conformance situations . 7
5 Information for users within a system/software life cycle . 8
6 Agreement processes within a system/software life cycle . 10
6.1 General . 10
6.2 Information for users acquisition process . 11
6.2.1 Purpose of the acquisition process . 11
6.2.2 Outcomes of the acquisition process . 11
6.3 Information for users acquisition activities and tasks . 11
6.3.1 General . 11
6.3.2 Acquisition preparation . 11
6.3.3 Supplier selection . 13
6.3.4 Negotiating and agreeing to the contract . 13
6.3.5 Contract management and monitoring . 13
6.3.6 Acquirer acceptance . 14
6.3.7 Acquisition closure . 14
6.4 Information for users supply process . 14
6.4.1 Purpose of the supply process . 14
6.4.2 Outcomes of the supply process . 14
6.5 Information for users supply activities and tasks . 14
6.5.1 General . 14
6.5.2 Opportunity identification and evaluation . 15
6.5.3 Proposal preparation . 15
6.5.4 Negotiating and agreeing to the contract . 15
6.5.5 Contract performance . 15
6.5.6 Delivery . 17
7 Defining information for users requirements and constraints . 17
7.1 Aspects of requirements and constraints . 17
7.2 Schedule constraints . 17
7.3 Usability requirements . 18
7.4 Product modification requirements . 18
7.5 Localization and translation requirements . 19
7.6 Legal requirements . 19
7.7 Safety requirements . 20
7.8 Security requirements . 20
7.9 Standards and conventions . 20
7.10 Quality management requirements . 20
8 Specification of the information for users . 21
9 Statement of work . 21
10 Request for proposal . 22
10.1 Request for proposal topics . 22
10.2 Project objectives . 23
10.3 Requirements for supporting processes . 23
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© ISO/IEC 2018 – All rights reserved
© IEEE 2018 — All rights reserved

10.4 Supplier capabilities and experience . 23
10.5 Instructions for bidders . 23
10.6 List of deliverable information for users products or services . 23
10.7 Confidentiality and intellectual property . 24
10.8 Proposal evaluation criteria . 24
11 Information for users proposal . 24
11.1 Information for users proposal contents . 24
11.2 Understanding of requirements . 25
11.3 Scope of the project . 26
11.4 Processes . 26
11.5 Experience, capabilities, and available resources . 26
11.6 Schedule . 27
11.7 Deliverables . 27
11.8 Price proposal . 27
Annex A (informative) Requirements clauses and checklist for acquirers . 28
Annex B (informative) Requirements clauses and checklist for suppliers . 31

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© IEEE 2018 — All rights reserved

Foreword
ISO (the International 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 established 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 field of information technology, ISO and IEC have established a joint technical committee, ISO/IEC
JTC 1.
IEEE Standards documents are developed within the IEEE Societies and the Standards Coordinating
Committees of the IEEE Standards Association (IEEE‐SA) Standards Board. The IEEE develops its
standards through a consensus development process, approved by the American National Standards
Institute, which brings together volunteers representing varied viewpoints and interests to achieve the
final product. Volunteers are not necessarily members of the Institute and serve without compensation.
While the IEEE administers the process and establishes rules to promote fairness in the consensus
development process, the IEEE does not independently evaluate, test, or verify the accuracy of any of the
information contained in its standards.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of ISO/IEC JTC 1 is to prepare International Standards. Draft International Standards
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 called to the possibility that implementation of this document may require the use of subject
matter covered by patent rights. By publication of this document, no position is taken with respect to the
existence or validity of any patent rights in connection therewith. ISO/IEC and IEEE is not responsible for
identifying essential patents or patent claims for which a license may be required, for conducting
inquiries into the legal validity or scope of patents
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