ISO/IEC 20071-23:2018
Information technology - User interface component accessibility - Part 23: Visual presentation of audio information (including captions and subtitles)
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About This Item
ISO/IEC 20071-23:2018 addresses the visual presentation of audio information, with a focus on how captions and subtitles are displayed for user interface accessibility. It is relevant where audio content must be made understandable through on-screen presentation in a consistent and usable way. For engineering, testing, and compliance teams, the document can support technical review, documented evaluation, and procurement decisions where accessible user interface behavior is part of the requirement set.
Overview of ISO/IEC 20071-23:2018
As part of the ISO/IEC 20071 series, ISO/IEC 20071-23:2018 serves as a supporting reference connected to the broader user interface component accessibility framework. Its scope is centered on the visual presentation of audio information, especially captions and subtitles, which are often important in accessibility-driven design and verification activities. Organizations may use it to inform engineering documentation, product evaluation, and technical validation where the readability and presentation of audio-derived text need to be assessed consistently.
Compliance applications of ISO/IEC 20071-23:2018
ISO/IEC 20071-23:2018 is commonly relevant in product assessment workflows for software, media playback interfaces, communication systems, and other user-facing applications that present audio content visually. It may also support laboratory evaluation, accessibility testing, and internal quality workflows where subtitle rendering, caption visibility, and interface consistency are checked against defined criteria. For procurement and regulatory preparation, it can act as a useful technical document when accessibility requirements must be traced through design, verification, and conformity assessment steps.
Importance of compliance with ISO/IEC 20071-23:2018
Using ISO/IEC 20071-23:2018 in compliance workflows can improve consistency in how audio information is presented to users, which is important for accessibility, usability, and risk reduction. Clear expectations for captions and subtitles can support engineering validation, reduce ambiguity in testing, and help teams prepare evidence for conformity assessment. It is also valuable during procurement review, where technical requirements for accessible presentation may need to be documented and evaluated before implementation or acceptance.
- Visual presentation requirements for captions and subtitles in accessible user interfaces
- Support for technical assessment and verification activities during product development
- Useful reference for documentation, procurement review, and compliance planning
- Helps align testing workflows with accessibility-focused design expectations
- Publication Date: 2018-09-25
- Standard Status: Derived
- Publisher: IEC
- Edition: 1
- New Version Available: ISO/IEC 20071 (2025-01-07)
- Previous Version: ISO/IEC 20071 (2022-10-05)
- Previous Version: ISO/IEC 20071 (2019-12-16)
- This Version: ISO/IEC 20071 (2018-09-25)
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