Books like A practical guide to usability testing by Joseph S. Dumas

Steve Krug’s practical guide distills usability expertise into clear principles for creating intuitive, user-friendly web sites that keep visitors coming back.

It's been known for years that usability testing can dramatically improve products. But with a typical price tag of $5,000 to $10,000 for a usability consultant to conduct each round of tests, it rarely happens. In this how-to companion to Don't Make Me Think: A Common Sense Approach to Web Usability, Steve Krug spells out an approach to usability testing that anyone can easily apply to their own web site, application, or other product. (As he said in Don't Make Me Think, "It's not rocket surgery".) In this new book, Steve explains how to: Test any design, from a sketch on a napkin to a fully-functioning web site or application; Keep your focus on finding the most important problems (because no one has the time or resources to fix them all); Fix the problems that you find, using his "The least you can do" approach. By paring the process of testing and fixing products down to its essentials (A morning a month, that's all we ask), Rocket Surgery makes it realistic for teams to test early and often, catching problems while it's still easy to fix them. Rocket Surgery Made Easy adds demonstration videos to the proven mix of clear writing, before-and-after examples, witty illustrations, and practical advice that made Don't Make Me Think so popular. - Publisher.

"This book describes research in all aspects of the design, implementation, and evaluation of embodied conversational agents as well as details of specific working systems. Many of the chapters are written by multidisciplinary teams of psychologists, linguists, computer scientists, artists and researchers in interface design."--BOOK JACKET.

A practical guide to user‑interface usability testing, updated with current best practices and diverse examples to help designers and developers create products that meet user expectations.