ISO IEC TS 5723-2022 PDF

Full title and description

ISO/IEC TS 5723:2022 — Trustworthiness — Vocabulary. A technical specification that establishes a common vocabulary and definitions for "trustworthiness" as it applies to systems and their associated services, and lists a selected set of characteristics used to describe and evaluate trustworthiness.

Abstract

This Technical Specification provides a concise definition of trustworthiness for systems and services and supplies a limited, focused vocabulary of related terms and selected trustworthiness characteristics (for example: security, safety, reliability, privacy, resilience, availability, transparency and accountability). The purpose is to enable consistent communication among stakeholders (developers, suppliers, users, assessors and regulators) when discussing trustworthiness expectations and requirements.

General information

• Status: Published
• Publication date: 22 July 2022
• Publisher: ISO and IEC (joint publication by ISO/IEC JTC 1)
• ICS / categories: 35.020; 01.040.35
• Edition / version: Edition 1.0 (2022)
• Number of pages: 9

Scope

Defines the term "trustworthiness" in the context of systems and associated services and provides normative terminology and a selected set of characteristics that stakeholders can use to describe and reason about trustworthiness. The document is intentionally concise: it does not prescribe measurement methods or conformity assessment schemes, but it supports consistent communication and alignment across related standards, guidance and assessment frameworks.

Key topics and requirements

• Formal definition of "trustworthiness" for systems and services.
• Definitions of selected trustworthiness characteristics and supporting terms (examples include security, safety, reliability, privacy, availability, resilience, integrity, transparency and accountability).
• Clarification of how characteristics relate to one another and to stakeholder expectations (context dependency, trade-offs and balancing of attributes).
• Vocabulary intended to support alignment between standards, procurement, specifications and assessments rather than to set quantitative thresholds or test methods.
• Normative terms and brief explanatory notes to reduce ambiguity in cross-domain discussions (IT, OT, IoT, AI-enabled systems).

Typical use and users

Used by standards committees, systems architects, product managers, procurement teams, risk and compliance officers, assessors and regulators who need a common language to specify, compare or assess the trustworthiness of products, services and systems. Also useful to writers of policies, contractual requirements and technical specifications where consistent definitions of trustworthiness-related terms are required.

Related standards

Relevant and complementary documents include ISO/IEC TR 24028:2020 (Overview of trustworthiness in AI), the ISO/IEC 27000 family (information security management vocabulary and guidance), ISO/IEC 25000 series (software and system quality models), and other ISO/IEC publications and Technical Specifications addressing security, safety, privacy and resilience. National adoptions and sector-specific frameworks that address trustworthiness concepts will often reference this TS for vocabulary alignment.

Keywords

trustworthiness, vocabulary, terminology, trust, security, safety, reliability, privacy, resilience, availability, integrity, transparency, accountability, ISO/IEC JTC 1

FAQ

Q: What is this standard?

A: ISO/IEC TS 5723:2022 is a Technical Specification that defines the term "trustworthiness" for systems and services and provides a concise vocabulary of related characteristics to support consistent communication among stakeholders.

Q: What does it cover?

A: It covers definitions and short explanatory notes for trustworthiness and a selected set of associated characteristics (such as security, safety, reliability, privacy, availability, resilience, transparency and accountability). It does not define assessment methods, metrics or certification schemes.

Q: Who typically uses it?

A: Standards developers, systems and software architects, product managers, procurement and acquisition professionals, risk and compliance teams, assessors, auditors and regulators—anyone who needs a shared, unambiguous vocabulary when specifying or evaluating trustworthiness expectations.

Q: Is it current or superseded?

A: It was published in July 2022 (Edition 1) and is a current Technical Specification; like other ISO/IEC documents it is subject to periodic review (typically every five years) to determine whether it should be confirmed, revised or withdrawn.

Q: Is it part of a series?

A: It is a stand‑alone Technical Specification, but it sits within the broader ISO/IEC JTC 1 work on information technology and trustworthiness. It is intended to be used alongside related ISO/IEC standards and technical reports (for example TRs and standards addressing AI trustworthiness, information security, software/system quality and resilience).

Q: What are the key keywords?

A: Trustworthiness, vocabulary, terminology, security, safety, reliability, privacy, resilience, availability, integrity, transparency, accountability.