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Interaction Equivalency/Evidence
Method evidence record

Interaction Equivalency

Interaction Equivalency is an evaluation method for validating that alternative input and output modalities (voice, gesture, eye tracking, switch control) provide functionally equivalent access to system capabilities compared to standard input (keyboard, mouse). Developed by Shari Trewin, this method ensures that assistive and alternative interaction methods do not create barriers or diminish user capability. Rather than retrofitting accessibility as an afterthought, Interaction Equivalency assesses multi-modal design at design time, ensuring users with disabilities can access all functionality with comparable efficiency.

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Source record

Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.

Interaction Equivalency Method
Taxonomic method record · hypothesis-test / human-computer-interaction
  • Trewin, S. (2013). The Interaction Equivalency Principle in assistive technology and universal design. In Universal Access in Human-Computer Interaction (pp. 535–544). Springer. · URL
  • Washington, P., et al. (2015). Gesture and voice based customizable interface for individuals with upper limb motor impairments. In Proceedings of the 41st Graphics Interface Conference (pp. 15–22). · URL
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Related methods

Generated from the method graph and shown as machine-suggested relations — no evidence claim is inferred.

Same method familyCognitive Walkthroughmachine-suggested · Relational suggestion, not evidence.Same method familyHeuristic Evaluationmachine-suggested · Relational suggestion, not evidence.Same method familyThink-Aloud Protocolmachine-suggested · Relational suggestion, not evidence.

Evidence status

Sources recorded, not reviewed

Bibliographic sources are present. Claim-level evidence review has not been performed.

Sources

2 recorded citations, copied from the method source record.

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