Chatbot Accessibility Playbook

Recommendation 4.2.5:
Keep message content simple

Benefits Users

Icon for CognitiveCognitive

Icon for StandardRelevant W3C Guidance


Phase 1: Gather & Organize

Icon for Read MoreRead More

Icon for User ResearchUser Research

  • Determine the language level of your users. Does the intended demographic skew young or old, have a relatively high or low educational attainment, or tend to speak English as a second language? Review the task language with users. Which words are most commonly not understood?


Phase 2: Design & Implement

Icon for TipTip

  • The chatbot should say exactly what it means and avoid poetic and metaphorical language.

  • Spell out acronyms and abbreviations

  • When in doubt, aim for a lower secondary education level in accordance with WCAG guidance.

Icon for AntipatternAntipattern

  • Don’t use figures of speech, idioms, exaggerations, ambiguous language, or turns of phrase. Use plain, straightforward language.


Phase 3: Test & Evaluate

Icon for Self CheckSelf Check

  • Does the chatbot use literal language in every message?

  • Does the chatbot avoid jargon and acronyms?

Icon for Ask the UserAsk the User

  • Are the chatbot’s messages easy to understand?

    • This question is subjective; use a Likert scale. This question should be asked post-study.

Icon for TestingTesting

  • Get people with disabilities involved in conversation design.



References

6, 9, 11, 13, 22, 23, 32