ISO 9241-171:2025

Ergonomics of human-system interaction — Part 171: Software accessibility

Publication date:   Dec 5, 2025

General information

60.60   Standard published   Dec 5, 2025

ISO

ISO/TC 159/SC 4 Ergonomics of human-system interaction

International Standard

35.080   Software | 13.180   Ergonomics

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Scope

This document specifies requirements and gives guidelines for designing accessible software for people with the widest range of physical, sensory and cognitive abilities, including those who are temporarily or situationally disabled, and the elderly. It addresses software considerations for accessibility that complement general design for usability as addressed by parts of the ISO 9241 series, especially ISO 9241-11 and ISO 9241-210.
This document is applicable to the accessibility of interactive systems. It addresses a wide range of software (e.g. home, mobile, office, web, learning support and library systems). It promotes the increased usability of systems for a wider range of users in the widest range of contexts of use.
This document does not apply to the behaviour of, or requirements for, assistive technologies (including assistive software), but it does address the use of assistive technologies as an integrated component of interactive systems.
It is intended for use by those responsible for the specification, design, development, evaluation and procurement of software platforms and software applications.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 9241-171:2008

NOW

PUBLISHED
ISO 9241-171:2025
60.60 Standard published
Dec 5, 2025