Advice from the experts on how to justify time and money spent on usability!

Today's increasingly competitive and fiscally constrained business environment is fostering the need to cut costs and justify expenditures. Usability engineering is not universally accepted, nor is it yet an integrated aspect of software engineering, and would-be usability champions are hard pressed to win the funding necessary to introduce and promote usability engineering techniques.

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 of Cost-Justifying Usability, 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

This text is about achieving usability in product user interface design through a process called Usability Engineering. The techniques presented include not only UI requirements analysis, but also organizational and managerial strategies.

Usability engineering is about designing products that are easy to use. This text provides an introduction to human computer interaction principles, and how to apply them in ways that make software and hardware more effective and easier to use.

Quantifying the User Experience: Practical Statistics for User Research, Second Edition, provides practitioners and researchers with the information they need to confidently quantify, qualify, and justify their data. The book presents a practical guide on how to use statistics to solve common quantitative problems that arise in user research. It addresses questions users face every day, including, Is the current product more usable than our competition? Can we be sure at least 70% of users can complete the task on their first attempt? How long will it take users to purchase products on the website? This book provides a foundation for statistical theories and the best practices needed to apply them. The authors draw on decades of statistical literature from human factors, industrial engineering, and psychology, as well as their own published research, providing both concrete solutions (Excel formulas and links to their own web-calculators), along with an engaging discussion on the statistical reasons why tests work and how to effectively communicate results. Throughout this new edition, users will find updates on standardized usability questionnaires, a new chapter on general linear modeling (correlation, regression, and analysis of variance), with updated examples and case studies throughout. - Completely updated to provide practical guidance on solving usability testing problems with statistics for any project, including those using Six Sigma practices - Includes new and revised information on standardized usability questionnaires - Includes a completely new chapter introducing correlation, regression, and analysis of variance - Shows practitioners which test to use, why they work, and best practices for application, along with easy-to-use Excel formulas and web-calculators for analyzing data - Recommends ways for researchers and practitioners to communicate results to stakeholders in plain English

Today, more and more Web sites are providing content in multiple languages for targeted countries, and more and more products are being designed for cultural differences in mind. However, the concept of cross-cultural design has not yet become a strong force in the practitioners' and educators' agenda. This book looks at techniques, software, tools