Web Usability


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Web Usability

  1. 1. Web Usability UCR Webmasters Support Group Michael Yonezawa September 9th, 2004
  2. 2. What is Usability? <ul><li>Usability is the measure of the quality of a user's experience when interacting with a product or system — whether a Web site, a software application, mobile technology, or any user-operated device. </li></ul><ul><li>http:// www.usability.gov </li></ul>
  3. 3. What is Usability? <ul><li>Usability is a combination of factors that affect the user's experience with the product or system, including: </li></ul><ul><ul><li>Ease of learning </li></ul></ul><ul><ul><li>Efficiency of use </li></ul></ul><ul><ul><li>Memorability </li></ul></ul><ul><ul><li>Error frequency and severity </li></ul></ul><ul><ul><li>Subjective satisfaction </li></ul></ul>
  4. 4. Ease of learning <ul><li>How fast can a user who has never seen the user interface before learn it sufficiently well to accomplish basic tasks? </li></ul>
  5. 5. Efficiency of use <ul><li>Once an experienced user has learned to use the system, how fast can he or she accomplish tasks? </li></ul>
  6. 6. Memorability <ul><li>If a user has used the system before, can he or she remember enough to use it effectively the next time or does the user have to start over again learning everything? </li></ul>
  7. 7. Error frequency and severity <ul><li>How often do users make errors while using the system, how serious are these errors, and how do users recover from these errors? </li></ul>
  8. 8. Subjective satisfaction <ul><li>How much does the user like using the system? </li></ul>
  9. 9. Print Resources <ul><li>An Introduction to Usability by Patrick W. Jordan </li></ul><ul><li>Don’t Make Me Think : a common sense approach to web usability by Steve Krug </li></ul><ul><li>Information Architecture : for the World Wide Web by Rosenfield & Morville </li></ul><ul><li>Home Page Usability : 50 websites deconstructed by Nielson & Tahir </li></ul><ul><li>Designing Web Usability : the practice of simplicity by Jakob Nielson </li></ul>
  10. 10. More Print Resources <ul><li>250 HTML and Web Design Secrets by Molly E. Holzschlag </li></ul><ul><li>Usability Evaluation of Online Learning Programs edited by Claude Ghaoui </li></ul><ul><li>Usability Testing of Voting Systems by Federal Election Commission </li></ul><ul><li>Handbook of Usability Testing : how to plan, design, and conduct effective tests by Jeffrey Rubin </li></ul>
  11. 11. Online Resources <ul><li>Information Architecture : for the World Wide Web by Louis Rosenfeld and Peter Morville </li></ul><ul><li>Usability Testing of Voting Systems by Federal Election Commission </li></ul><ul><li>Usability and the Web: an overview by George Murray and Tania Costanzo, at the National Library of Canada, http://www.nlc-bnc.ca/9/1/p1-260-e.html </li></ul>
  12. 12. More Online Resources <ul><li>What is Usability? , by Environmental Systems Research Institute, Inc., http:// www.esri.com/software/usability/whatisusability.html </li></ul><ul><li>Usability.gov U.S. Department of Health and Human Services http://www.usability.gov/ </li></ul><ul><li>Usability Testing of World Wide Web Sites by U.S. Department of Labor Bureau of Labor Statistics [ PDF version ] http://stats.bls.gov/ore/htm_papers/st960150.htm http://stats.bls.gov/ore/pdf/st960150.pdf </li></ul>
  13. 13. Even More Online Resources <ul><li>Notes on Usability Testing by W3C Web Accessibility Initiative http://www.w3.org/WAI/EO/Drafts/UCD/ut.html </li></ul><ul><li>useit.com : Jakob Nielsen on Usability and Web Design http://www.useit.com </li></ul><ul><li>User Testing Techniques - a reader-friendliness checklist by All Things Web http://www.pantos.org/atw/35317.html </li></ul>
  14. 14. Did You Know? <ul><li>The Webby Awards http://www.webbyawards.com/ </li></ul><ul><li>User Experience 2004 Conference http://www.nngroup.com/events/ </li></ul>