I want to write an article on universal usability. What are the aspects shall I cover? Any suggestions.
Are you talking about Heuristic evaluation?
No Its Universal usability, which extends usability to disabled, people from various regions, community, language etc.
I would add voice as a topic (well, of course…
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The thing with user interfaces is that they should include as many user interaction modalities as possible so that the user can select the modality that works the best for their use case.
For people with dyslexia for example can find voice input a great improvement.