You just know that an improvement of the user interface will reap rewards, but how do you justify the expense and the labor and the time guarantee a robust ROI ahead of time? How do you decide how much of an investment should be funded? And what is the best way to sell usability to others?
In this completely revised and new edition, Randolph G. Bias (University of Texas at Austin, with 25 years experience as a usability practitioner and manager) and Deborah J. Mayhew (internationally recognized usability consultant and author of two other seminal books including The Usability Engineering Lifecycle) tackle these and many other problems. It has been updated to cover cost-justifying usability for Web sites and intranets, for the complex applications we have today, and for a host of products offering techniques, examples, and cases that are unavailable elsewhere. No matter what type of product you build, whether or not you are a cost-benefit expert or a born salesperson, this book has the tools that will enable you to cost-justify the appropriate usability investment.
.Includes contributions by a host of experts involved in this work, including Aaron Marcus, Janice Rohn, Chauncey Wilson, Nigel Bevan, Dennis Wixon, Clare-Marie Karat, Susan Dray, Charles Mauro, and many others;
.Includes actionable ideas for every phase of the software development process;
.Includes case studies from inside a variety of companies;
.Includes ideas from "the other side of the table," software executives who hold the purse strings, who offer thoughts on which proposals for usability support they've funded, and which ones they've declined."

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 answers this question in full, presenting the techniques of Usability Engineering as a series of product lifecycle tasks that result directly in easier-to-learn, easier-to-use software.
You'll learn to perform a complete requirements analysis and then incorporate the resulting goals and constraints in a highly structured, iterative design and development process. This process doesn't end with installation but instead begins anew with the collection of user feedback that will guide further development. Also covered are organizational issues related to the implementation of Usability Engineering, including cost justification, project planning, and organizational structures.
* Unites all current UE techniques in a single, authoritative resource, presenting a coherent lifecycle process in which each clearly defined task leads directly the next.
* Teaches concrete, immediately usable skills to practitioners in all kinds of product development organizations-from internal departments to commercial developers to consultants.
* Contains examples of actual software development projects and the ways in which they have benefited from Usability Engineering.
* Deals in specifics, not generalities-provides detailed templates and instructions for every phase of the Usability Engineering lifecycle.
* Pays special attention to Web site development and explains how Usability Engineering principles can be applied to the development of any interactive product.