Overview
ISO/TS 21054:2020 - Ergonomics - Accessible design - Controls of consumer products - defines ergonomic design principles to make controls (buttons, dials, switches, keypads, remotes, etc.) usable by the widest possible range of consumers, including older adults and people with disabilities. The Technical Specification applies to controls for common main operations (start, stop, power, cancel) and for functions requiring adjustment or selection, and it emphasizes universal and accessible design across all consumer product types.
Key Topics and Requirements
- Guiding principles: design for effectiveness, efficiency and satisfaction for diverse users; controls have no intrinsic accessibility - context matters.
- Operability: controls must be available, predictable and consistent in behavior so users can find and operate them reliably.
- Availability: location, form, colour, texture and size should make controls discoverable.
- Predictability & Consistency: responses and movements should match user expectations and be uniform across similar tasks.
- User compatibility & Psychological approachability: accommodate anthropometric and biomechanical differences and reduce psychological barriers to use.
- Controllability & Control-response ratio: ensure the control movement maps appropriately to system response to avoid over- or under-control.
- Error tolerance: design to minimize and mitigate user errors (safe defaults, easy cancellation).
- Physical workload: address posture, required force, dexterity and fatigue so controls can be used by people with reduced strength, reach or fine motor control.
- Perceptual coding: use clear visual symbols, text and tactile markings (e.g., tactile dots/bars) so controls are discernible by touch and sight.
- Single function per control & logical grouping: avoid multi-function controls where possible and group related controls in logical orders.
Applications and Who Uses It
ISO/TS 21054:2020 is intended for:
- Consumer product designers and engineers integrating accessibility from concept to product release.
- Procurement and specification teams seeking accessible product requirements.
- Usability specialists and customer-care teams advising on operation and support.
- Manufacturers of household electronics, appliances, personal devices and remote controls who need to improve reach, grasp, identification and safe operation for diverse users.
Practical benefits include increased market reach, fewer user errors and improved customer satisfaction by designing controls that are easier to locate, identify and operate.
Related Standards
- ISO/IEC Guide 71 (accessibility concepts)
- ISO 9241-400 series (input device ergonomics)
- ISO 24503 (tactile marking guidance)
- IEC 63008 (controls specifications)
- ISO/TS 20282-1 (consumer product definition)
Keywords: ISO/TS 21054:2020, accessible design, controls of consumer products, ergonomics, universal design, operability, tactile markings, physical workload.