All the right gears can be put in motion.
The hands can be at the exact place they need to be.
But if you don't get the response that you're expecting,
you'll end up wondering if there's some sort of problem.
It's the same on the Web.
Without clear notifications and feedback,
people are quickly disorientated and confused.
Especially error messages which are often complex and confusing.
Yet making them understandable is usually quite simple.
Making websites and apps predictable and understandable
makes them accessible for people with cognitive and learning disabilities,
and more usable for everyone.
Especially people with lower computer skills.
Web accessibility: Essential for some, useful for all.