It would be good if all designers took their lead from the likes of Apple and Google: inclusion, accessibility and usabilty are about the design process. Apart from clearly explaining how these terms are linked and can be used together, Google’s half hour video spells out accessible, inclusive and usueable. It also has some tips and tools for designers and shows how three different users have the same need: a man with a mobility disability (permanent), a boy with a broken arm (temporary) and a woman with an armful of shopping (situational).
Individual situations might be different but they all have the same need for accessibility. And people have the same goals they want to achieve regardless of their situation. While this instructional presentation is aimed at an audience interested in designing apps, particularly the second half of the video, the messages in the first half can be applied to other design disciplines.