Overview
EN ISO 9241-971:2022 - Ergonomics of human‑system interaction, Part 971: Accessibility of tactile/haptic interactive systems - is a CEN-endorsed adoption of ISO 9241-971:2020. It provides ergonomic requirements and recommendations to increase the accessibility of systems that use tactile and haptic input/output modalities (for example gestures, vibration, and force feedback). The standard covers general guidance for design, presentation and control of tactile/haptic interactions and is applicable to a wide range of interactive systems, including assistive technologies (AT).
Key topics and technical requirements
The standard addresses practical, design-oriented topics useful to product teams and accessibility specialists. Major areas include:
- Physical accessibility
- Approach, reachability, stability and space for tactile/haptic devices.
- Presentation of tactile/haptic information
- Multiple formats, encoding and contextual considerations for tactile output.
- Perceivability
- Discoverability and distinguishability of tactile components, pausing/repeating outputs, output location and timing.
- Controllability
- Physical attributes of controls, activation methods (including single‑handed or non‑hand activation), sequential control and timing.
- Individualization
- Adjustable tactile/haptic parameters, defaults, saving/loading user settings and minimizing parameter complexity.
- Error tolerance and safety
- Avoiding unintentional activations, undo mechanisms, warnings for hazardous actions, prevention of overstimulation, fatigue and hardware damage.
- Tactile/haptic authentication
- Guidance on accessible authentication methods and alternatives to biometric-only approaches.
- Input‑specific guidance
- Keyboard, pointing devices, motion tracking and gesture considerations (e.g., virtual keyboards, avoiding need for fine motor precision).
These topics are presented as normative guidance and recommendations for designers, developers and evaluators to improve usability and accessibility.
Applications and who should use it
EN ISO 9241-971:2022 is relevant to:
- UX/UI and interaction designers working on haptic interfaces
- Hardware and firmware engineers developing vibration, force‑feedback or gesture systems
- Accessibility specialists and compliance officers assessing device accessibility
- Developers of assistive technology, consumer electronics, vehicle interfaces, medical devices and public kiosks
- Regulators and procurement teams specifying accessible tactile/haptic requirements
Applying this standard helps create more inclusive tactile/haptic interactions, reduce user errors, and improve safety and usability for people with diverse sensory and motor abilities.
Related standards
- Part of the ISO 9241 series (ergonomics of human‑system interaction). For complete conformity and broader usability guidance, consult other ISO 9241 parts and national standards bodies (CEN members) for implementation and national adoption details.