books.google.co.uk - A commitment to usability in user interface design and development offers enormous benefits, including greater user productivity, more competitive products, lower support costs, and a more efficient development process. But what does it mean to be committed to usability? Inside, a twenty-year expert...http://books.google.co.uk/books/about/The_Usability_Engineering_Lifecycle.html?id=q_9tlou__DgC&q=usability+testing&utm_source=gb-gplus-shareThe Usability Engineering Lifecycle
