Also note that invariably when we design something that can be used by those with disabilities, we often make it better for everyone. – Donald Norman
User-centered design means working with your users all throughout the project. – Donald Norman
Isnt one of your first exercises in learning how to communicate to write a description of how to tie your shoelaces? The point being that its basically impossible to use text to show that. – Donald Norman
It is relatively easy to design for the perfect cases, when everything goes right, or when all the information required is available in proper format. – Donald Norman