ISO/IEC TS 5723:2022

Trustworthiness — Vocabulary

This document provides a definition of trustworthiness for systems and their associated services, along with a selected set of their characteristics.

Titre manque

General Information

• Status: Published
• Publication Date: 21-Jul-2022
• ICS: 01.040.35 - Information technology (Vocabularies)
• ICS: 35.020 - Information technology (IT) in general
• Technical Committee: ISO/IEC JTC 1 - Information technology
• Drafting Committee: ISO/IEC JTC 1 - Information technology
• Current Stage: 6060 - International Standard published
• Start Date: 22-Jul-2022
• Due Date: 15-Apr-2023
• Completion Date: 22-Jul-2022

Standards Content (Sample)

TECHNICAL ISO/IEC TS
SPECIFICATION 5723
First edition
2022-07
Trustworthiness — Vocabulary
Reference number
ISO/IEC TS 5723:2022(E)
© ISO/IEC 2022

---------------------- Page: 1 ----------------------
ISO/IEC TS 5723:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic 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 ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO/IEC 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC TS 5723:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Trustworthiness . 1
3.2 Selected trustworthiness characteristics . 1
3.3 Selected supporting definitions . 4
Bibliography . 7
Index . 9
iii
© ISO/IEC 2022 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/IEC TS 5723:2022(E)
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.
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
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 or www.iec.ch/members_
experts/refdocs).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO 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) or the IEC
list of patent declarations received (see https://patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www.iso.org/
iso/foreword.html. In the IEC, see www.iec.ch/understanding-standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html and www.iec.ch/national-
committees.
iv
  © ISO/IEC 2022 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/IEC TS 5723:2022(E)
Introduction
Recent times have seen an increase in the complexity of integrating technology bringing together
various viewpoints. Some examples of this are the convergence of operational technologies (OT) and
information technologies (IT) as seen in the Internet of Things (IoT), the rise of big data and artificial
intelligence (AI).
The complexity as well as the criticality, from both a safety and a mission point of view, have given
rise to the need to communicate both the trustworthiness of products, services and technologies, and
the trustworthiness of organizations that are providing these. Having a common understanding of
the characteristics that can be used to describe trustworthiness and a common way of defining the
vocabulary and characteristics will allow stakeholders to make a judgement as to whether a product,
service or technology meets the stakeholder expectations.
This document is primarily intended for use horizontally in an IT domain. It is applicable to all domains
in which IT is used.
The terms and definitions in subclause 3.2 are extracted from the ISO and the IEC vocabulary
repositories. Where multiple definitions are given, those that best fit the current context of
trustworthiness have been selected. For some characteristics, multiple definitions have been retained
for different domains.
The terms and definitions in subclause 3.3 are provided for completeness.
v
© ISO/IEC 2022 – All rights reserved

---------------------- Page: 5 ----------------------
TECHNICAL SPECIFICATION ISO/IEC TS 5723:2022(E)
Trustworthiness — Vocabulary
1 Scope
This document provides a definition of trustworthiness for systems and their associated services, along
with a selected set of their characteristics.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 Trustworthiness
3.1.1
trustworthiness
ability to meet stakeholders’ (3.3.8) expectations in a verifiable (3.3.12) way
Note 1 to entry: Depending on the context or sector, and also on the specific product or service, data, technology
and process used, different characteristics apply and need verification to ensure stakeholders’ expectations are
met.
Note 2 to entry: Characteristics of trustworthiness include, for instance, accountability (3.2.1), accuracy (3.2.2),
authenticity (3.2.3), availability (3.2.4), controllability (3.2.5), integrity (3.2.7, 3.2.8), privacy (3.2.9), quality
(3.2.10, 3.2.11), reliability (3.2.12, 3.2.13), resilience (3.2.14, 3.2.15), robustness (3.2.16), safety (3.2.17), security
(3.2.18), transparency (3.2.19, 3.2.20) and usability (3.2.21).
Note 3 to entry: Trustworthiness is an attribute that can be applied to services, products, technology, data and
information as well as to organizations.
Note 4 to entry: Verifiability (3.3.12) includes measurability (3.3.5) and demonstrability by means of objective
evidence (3.3.7).
3.2 Selected trustworthiness characteristics
3.2.1
accountability
state of being accountable (3.3.1)
Note 1 to entry: Accountability relates to an allocated responsibility. The responsibility can be based on
regulation or agreement or through assignment as part of delegation.
Note 2 to entry: For systems (3.3.10), accountability is a property that ensures that actions of an entity can be
traced uniquely to the entity (see ISO 7498-2:1989, 3.3.3).
1
© ISO/IEC 2022 – All rights reserved

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ISO/IEC TS 5723:2022(E)
Note 3 to entry: In a governance context, accountability is the obligation of an individual or organization to
account for its activities, for completion of a deliverable or task, accept the responsibility for those activities,
deliverables or tasks, and to disclose the results in a transparent manner (see ISO/TS 21089:2018, 3.3.1).
[SOURCE: ISO/IEC 38500:2015, 2.3, modified — Note 2 to entry and Note 3 to entry have been added.]
3.2.2
accuracy
measure of closeness of results of observations, computations, or estimates to the true values or the
values accepted as being true
[SOURCE: ISO 17572-1:2022, 3.1]
3.2.3
authenticity
property that an entity is what it claims to be
[SOURCE: ISO/IEC 27000:2018, 3.6]
3.2.4
availability
property of being accessible and usable on demand by an authorized entity
[SOURCE: ISO/IEC 27000:2018, 3.7]
3.2.5
controllability
property of a system (3.3.10) that allows a human or another external agent to intervene in the system’s
functioning
Note 1 to entry: Such a system is heteronomous.
[SOURCE: ISO/IEC 22989:2022, 3.5.6, modified — The admitted term “controllable” has been removed
and “an AI system” has been changed to “a system”.]
3.2.6
information security
preservation of confidentiality, integrity (3.2.7, 3.2.8) and availability (3.2.4) of information
Note 1 to entry: In addition, other properties, such as authenticity (3.2.3), accountability (3.2.1), non- repudiation,
and reliability (3.2.12, 3.2.13) can also be involved.
[SOURCE: ISO 27000:2018, 3.28]
3.2.7
integrity
property whereby data have not been altered in an unauthorized manner since they were
created, transmitted, or stored
[SOURCE: ISO/IEC 29167-19:2019, 3.3, modified — The domain has been added.]
3.2.8
integrity
property of accuracy (3.2.2) and completeness
[SOURCE: ISO/IEC 27000:2018, 3.36, modified — The domain has been added.]
2
  © ISO/IEC 2022 – All rights reserved

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ISO/IEC TS 5723:2022(E)
3.2.9
privacy
freedom from intrusion
...

ISO/IEC TS 5723:2022(E)
ISO/IEC JTC 1/WG 13
Date: 2022-04-1206
Trustworthiness — Vocabulary

Publication stage

Warning for WDs and CDs
This document is not an ISO International Standard. It is distributed for review and comment. It is subject to
change without notice and may not be referred to as an International Standard.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

---------------------- Page: 1 ----------------------
ISO/IEC TS 5723:2022(E)
© ISO/IEC 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part
of this publication may be reproduced or utilized otherwise in any form or by any means, electronic 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 ISO’s member body
in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO/IEC 2022 – All rights reserved
ii © ISO/IEC 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC TS 5723:2022(E)
Contents
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Trustworthiness . 1
3.2 Selected trustworthiness characteristics . 1
3.3 Selected supporting definitions . 4
Bibliography . 7
Foreword . iv
Introduction . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Trustworthiness . 1
3.2 Selected trustworthiness characteristics . 1
3.3 Selected supporting definitions . 5
Bibliography . 8

© ISO/IEC 2022 – All rights reserved iii
© ISO/IEC 2022 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO/IEC TS 5723:2022(E)
Foreword
ISO (the International Organization for Standardization) is a and IEC (the International Electrotechnical
Commission) form the specialized system for worldwide federation of national
standardsstandardization. National bodies (that are members of ISO member bodies). The workor IEC
participate in the development of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has
been established has the right to be represented on that committee. Internationalby 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. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
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 the
different types of ISO documentsdocument 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 2 (see
www.iso.org/directives or www.iec.ch/members_experts/refdocs).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO 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/patentswww.iso.org/patents) or the IEC
list of patent declarations received (see https://patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the World
Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see
www.iso.org/iso/foreword.html) see www.iso.org/iso/foreword.html. In the IEC, see
www.iec.ch/understanding-standards.
This document was prepared by the Joint Technical Committee ISO/IEC JTC 1, Information
technologiestechnology.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.htmlwww.iso.org/members.html
and www.iec.ch/national-committees.
iv © ISO/IEC 2022 – All rights reserved
iv © ISO/IEC 2022 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/IEC TS 5723:2022(E)
Introduction
There has beenRecent times have seen an increase in the complexity of integrating technology bringing
together various viewpoints. Some examples of this are the convergence of operational technologies (OT)
and information technologies (IT) as seen in internetthe Internet of thingsThings (IoT), the rise of big
data and artificial intelligence (AI).
The complexity as well as the criticality, from both a safety and a mission point of view, hashave given
rise to the need to communicate both the trustworthiness of products, services, and technologies, and the
trustworthiness of organizations that are providing these. Having a common understanding of the
characteristics that can be used to describe trustworthiness and a common way to defineof defining the
vocabulary and characteristics towill allow stakeholders to make a judgement ifas to whether a product,
service, or technology meets the stakeholder expectations.
This document is primarily intended for use horizontally in an information technology IT domain and. It
is applicable to all domains wherein which IT is used.
The terms and definitions in Clause subclause 3.2 are extracted from the ISO and the IEC vocabulary
repositories. Where multiple definitions are given, those that were best fittingfit the current context of
trustworthiness have been selected. For some characteristics, multiple definitions have been retained for
different domains.
The terms and definitions in Clause subclause 3.3 are provided for completeness.

© ISO/IEC 2022 – All rights reserved v
© ISO/IEC 2022 – All rights reserved v

---------------------- Page: 5 ----------------------
TECHNICAL SPECIFICATION ISO/IEC TS 5723:2022(E)

Trustworthiness — Vocabulary
1 Scope
This document provides a definition of trustworthiness offor systems and their associated services, along
with a selected set of itstheir characteristics.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— — ISO Online browsing platform: available at https://www.iso.org/obphttps://www.iso.org/obp
— — IEC Electropedia: available at https://www.electropedia.org/
3.1 Trustworthiness
3.1.1
trustworthiness
ability to meet stakeholders’ (3.3.9)(3.3.8) expectations in a verifiable (3.3.12)(3.3.12) way
Note 1 to entry: Depending on the context or sector, and also on the specific product or service, data, technology
and process used, different characteristics apply and need verification to ensure stakeholders’ expectations are met.
Note 2 to entry: Characteristics of trustworthiness include, for instance, accountability (3.2.1),(3.2.1), accuracy
(3.2.2),(3.2.2), authenticity (3.2.3),(3.2.3), availability (3.2.4),(3.2.4), controllability (3.2.5),(3.2.5), integrity (3.2.7,
3.2.8),(3.2.7, 3.2.8), privacy (3.2.9),(3.2.9), quality (3.2.10, 3.2.11),(3.2.10, 3.2.11), reliability (3.2.12, 3.2.13),(3.2.12,
3.2.13), resilience (3.2.14, 3.2.15),(3.2.14, 3.2.15), robustness (3.2.16),(3.2.16), safety (3.2.17),(3.2.17), security
(3.2.18),(3.2.18), transparency (3.2.19, 3.2.20)(3.2.19, 3.2.20) and usability (3.2.21).(3.2.21).
Note 3 to entry: Trustworthiness is an attribute that can be applied to services, products, technology, data and
information as well as to organizations.
Note 4 to entry: Verifiability (3.3.12)(3.3.12) includes measurability (3.3.1)(3.3.5) and demonstrability by means of
objective evidence. (3.3.7).
3.2 Selected trustworthiness characteristics
3.2.1 3.2.1
accountability
state of being accountable (3.3.1) (3.3.1)
© ISO/IEC 2022 – All rights reserved 1

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ISO/IEC TS 5723:2022(E)
Note 1 to entry: Accountability relates to an allocated responsibility. The responsibility can be based on regulation
or agreement or through assignment as part of delegation.
Note 2 to entry: For systems, it (3.3.10), accountability is a property that ensures that actions of an entity can be
traced uniquely to the entity [SOURCE:(see ISO 7498-2:1989, 3.3.3, modified ”For systems, it is a” is added in front
of “property”].).
Note 3 to entry: In a governance context, itaccountability is the obligation of an individual or organization to account
for its activities, for completion of a deliverable or task, accept the responsibility for those activities, deliverables or
tasks, and to disclose the results in a transparent manner [SOURCE:(see ISO/TS 21089: 2018, 3.3.1, modified ” In a
governance context, it is the” is added in front of “obligation”].).
[SOURCE: ISO/IEC 38500:2015, 2.3, modified --— Note 2 to entry and Note 3 to entry have been added.]
3.2.2 3.2.2
accuracy
measure of closeness of results of observations, computations, or estimates to the true values or the
values accepted as being true
[SOURCE: ISO 17572-1:2015, 2.1.1]
3.2.3 3.2.3
authenticity
property that an entity is what it claims to be
[SOURCE: ISO/IEC 27000:2018, 3.6]
3.2.4 3.2.4
availability
property of being accessible and usable on demand by an authorized entity
[SOURCE: ISO/IEC 27000:2018, 3.7]
3.2.5 3.2.5
controllability
property of a system (3.3.10) that allows a human or otheranother external agent canto intervene in the
system’s functioning
Note 1 to entry: Such a system is heteronomous.
1
[SOURCE: ISO/IEC 22989: ——, , 3.5.6, modified — The admitted term of “controllable” has been
removed and “an AI system” has been changed to “a system”.]
3.2.6 3.2.6
information security
preservation of confidentia
...

FINAL
TECHNICAL ISO/IEC DTS
DRAFT
SPECIFICATION 5723
ISO/IEC JTC 1
Trustworthiness — Vocabulary
Secretariat: ANSI
Voting begins on:
Voting terminates on:
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/IEC DTS 5723:2022(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO/IEC 2022

---------------------- Page: 1 ----------------------
ISO/IEC DTS 5723:2022(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO/IEC 2022
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic 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 ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH­1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
  © ISO/IEC 2022 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/IEC DTS 5723:2022(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
3.1 Trustworthiness . 1
3.2 Selected trustworthiness characteristics . 1
3.3 Selected supporting definitions . 4
Bibliography . 7
Index . 9
iii
© ISO/IEC 2022 – All rights reserved

---------------------- Page: 3 ----------------------
ISO/IEC DTS 5723:2022(E)
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 non­governmental, in liaison with ISO and IEC, also take part in the
work.
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 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 or
www.iec.ch/members_experts/refdocs).
Attention is drawn to the possibility that some of the elements of this document may be the subject
of patent rights. ISO 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) or the IEC
list of patent declarations received (see https://patents.iec.ch).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to
the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see
www.iso.org/iso/foreword.html. In the IEC, see www.iec.ch/understanding­standards.
This document was prepared by Joint Technical Committee ISO/IEC JTC 1, Information technology.
Any feedback or questions on this document should be directed to the user’s national standards
body. A complete listing of these bodies can be found at www.iso.org/members.html and
www.iec.ch/national­committees.
iv
  © ISO/IEC 2022 – All rights reserved

---------------------- Page: 4 ----------------------
ISO/IEC DTS 5723:2022(E)
Introduction
Recent times have seen an increase in the complexity of integrating technology bringing together
various viewpoints. Some examples of this are the convergence of operational technologies (OT) and
information technologies (IT) as seen in the Internet of Things (IoT), the rise of big data and artificial
intelligence (AI).
The complexity as well as the criticality, from both a safety and a mission point of view, have given
rise to the need to communicate both the trustworthiness of products, services and technologies, and
the trustworthiness of organizations that are providing these. Having a common understanding of
the characteristics that can be used to describe trustworthiness and a common way of defining the
vocabulary and characteristics will allow stakeholders to make a judgement as to whether a product,
service or technology meets the stakeholder expectations.
This document is primarily intended for use horizontally in an IT domain. It is applicable to all domains
in which IT is used.
The terms and definitions in subclause 3.2 are extracted from the ISO and the IEC vocabulary
repositories. Where multiple definitions are given, those that best fit the current context of
trustworthiness have been selected. For some characteristics, multiple definitions have been retained
for different domains.
The terms and definitions in subclause 3.3 are provided for completeness.
v
© ISO/IEC 2022 – All rights reserved

---------------------- Page: 5 ----------------------
TECHNICAL SPECIFICATION ISO/IEC DTS 5723:2022(E)
Trustworthiness — Vocabulary
1 Scope
This document provides a definition of trustworthiness for systems and their associated services, along
with a selected set of their characteristics.
2 Normative references
There are no normative references in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1 Trustworthiness
3.1.1
trustworthiness
ability to meet stakeholders’ (3.3.8) expectations in a verifiable (3.3.12) way
Note 1 to entry: Depending on the context or sector, and also on the specific product or service, data, technology
and process used, different characteristics apply and need verification to ensure stakeholders’ expectations are
met.
Note 2 to entry: Characteristics of trustworthiness include, for instance, accountability (3.2.1), accuracy (3.2.2),
authenticity (3.2.3), availability (3.2.4), controllability (3.2.5), integrity (3.2.7, 3.2.8), privacy (3.2.9), quality
(3.2.10, 3.2.11), reliability (3.2.12, 3.2.13), resilience (3.2.14, 3.2.15), robustness (3.2.16), safety (3.2.17), security
(3.2.18), transparency (3.2.19, 3.2.20) and usability (3.2.21).
Note 3 to entry: Trustworthiness is an attribute that can be applied to services, products, technology, data and
information as well as to organizations.
Note 4 to entry: Verifiability (3.3.12) includes measurability (3.3.5) and demonstrability by means of objective
evidence (3.3.7).
3.2 Selected trustworthiness characteristics
3.2.1
accountability
state of being accountable (3.3.1)
Note 1 to entry: Accountability relates to an allocated responsibility. The responsibility can be based on
regulation or agreement or through assignment as part of delegation.
Note 2 to entry: For systems (3.3.10), accountability is a property that ensures that actions of an entity can be
traced uniquely to the entity (see ISO 7498-2:1989, 3.3.3).
1
© ISO/IEC 2022 – All rights reserved

---------------------- Page: 6 ----------------------
ISO/IEC DTS 5723:2022(E)
Note 3 to entry: In a governance context, accountability is the obligation of an individual or organization to
account for its activities, for completion of a deliverable or task, accept the responsibility for those activities,
deliverables or tasks, and to disclose the results in a transparent manner (see ISO/TS 21089:2018, 3.3.1).
[SOURCE: ISO/IEC 38500:2015, 2.3, modified — Note 2 to entry and Note 3 to entry have been added.]
3.2.2
accuracy
measure of closeness of results of observations, computations, or estimates to the true values or the
values accepted as being true
[SOURCE: ISO 17572-1:2015, 2.1.1]
3.2.3
authenticity
property that an entity is what it claims to be
[SOURCE: ISO/IEC 27000:2018, 3.6]
3.2.4
availability
property of being accessible and usable on demand by an authorized entity
[SOURCE: ISO/IEC 27000:2018, 3.7]
3.2.5
controllability
property of a system (3.3.10) that allows a human or another external agent to intervene in the system’s
functioning
Note 1 to entry: Such a system is heteronomous.
1)
[SOURCE: ISO/IEC 22989: —, 3.5.6, modified — The admitted term “controllable” has been removed
and “an AI system” has been changed to “a system”.]
3.2.6
information security
preservation of confidentiality, integrity (3.2.7, 3.2.8) and availability (3.2.4) of information
Note 1 to entry: In addition, other properties, such as authenticity (3.2.3), accountability (3.2.1), non­ repudiation,
and reliability (3.2.12, 3.2.13) can also be involved.
[SOURCE: ISO 27000:2018, 3.28]
3.2.7
integrity
property whereby data have not been altered in an unauthorized manner since they were
created, transmitted, or stored
[SOURCE: ISO/IEC 29167-19:2019, 3.3, modified — The domain has been added.]
3.2.8
integrity
property of accuracy (3.2.2) and completeness
[SOURCE: ISO/IEC 27000:2018, 3.36, modified — The domain has been added.]
1) Unde
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