"Written by the author of the best-selling HyperText &​ HyperMedia, this book provides an excellent guide to the methods of usability engineering." "Special features: emphasizes cost-effective methods that will help developers improve their user interfaces immediately, shows you how to avoid the four most frequently listed reasons for delay in software projects, provides step-by-step information about which methods to use at various stages during the development life cycle, and offers information on the unique issues relating to informational usability." "You do not need to have previous knowledge of usability to implement the methods provided, yet all of the latest research is covered."--BOOK JACKET. 