posted on Wednesday, July 25, 2007 11:36 PM
by
thomasswilliams
Usability != Accessibility
I finished reading Steve Krug's book Don't Make Me Think (which is worthy of another post) the other day. This is a great book, easy to read, that tackles the theme of usability for the web.
I drift between developing for Windows and Web, and there's lots of ideas in the book which help with both.
So anyway, today I was looking at Usernomics (a usability website that I found, I think, from the book) which linked to an article on usability and accessibility that contained this quote:
For a start, I think we need to understand, once and for all, that usability is not the same thing as accessibility.Web usability affects all users and , generally speaking, can be sub-divided into five core components:
Learnability - How easy it is for visitors to find their way around the site during their first visit?
Effectivity - How quickly and easily can they perform tasks?
Memorability - When visitors return to the site after a period of time, how quickly do they recall how to use the site?
Reliability - How many errors do visitors make, how severe are those errors and how easily do they adjust?
Enjoyability - How pleasant is the site to use?
I just wanted to put the quote here so I would remember it.
Tags: 
usability, 
accessibility, 
web design