People are not static, we are dynamic. In order to meet our needs at any point in our lives or day, the UIs we create must be able to adapt to us — not the other way around.

I know someone that uses her screen reader on her mobile phone, but when she’s on her desktop computer, she uses a mangifier.

Different contexts, different tools, same person.

I know someone that uses voice controls on his computer. He uses direct commands like “Click Contact Us” when he’s near the start of his day, and commands like “Click link, twelve” when he’s near the end of his day with lower energy and less clear speech and a dry mouth.

Different energy/capacity, same tools, same person.

I know someone that uses a switch on his computer. He also uses the onscreen keyboard on his computer. The one that he chooses reflects the task he’s trying to accomplish and how he can minimize switching between the tools.

Different task, same context, same tools, same person.

Disability is not black and white… it’s every shade of every colour.