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Usability review

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  1. 1. Chapter 10 - Usability <ul><li>Brian Cary - ENGL 2116 </li></ul><ul><li>- Reasons for usability testing </li></ul><ul><li>- How usability fits into writing processes </li></ul><ul><li>- Understand the goal of always improving usability </li></ul><ul><li>- Know about planning sessions </li></ul><ul><li>- Recognize participants must represent users </li></ul><ul><li>- Know that usability testers must observe and record reactions </li></ul><ul><li>- Know that testers analyze the data </li></ul>
  2. 2. Usability <ul><li>Usability refers to how successfully and satisfactorily a person uses a product, document, or website. </li></ul><ul><li>Usability Traits: </li></ul><ul><li>Easy to learn </li></ul><ul><li>Easy to remember </li></ul><ul><li>Efficient </li></ul><ul><li>Satisfying </li></ul><ul><li>Error free </li></ul>
  3. 3. Usability in the workplace <ul><li>Usability testing helps designers and writers catch problems in their documents and websites before the final version is produced. </li></ul><ul><li>Usability testing can help writers and designers create better documents which helps users </li></ul><ul><li>Not every document must be tested </li></ul>
  4. 4. User-Centered Design <ul><li>Steps to put users at the center of design: </li></ul><ul><li>Predesign </li></ul><ul><li>Usability measurement </li></ul><ul><li>Iterative design </li></ul>
  5. 5. Usability testing in a lab <ul><li>2 rooms </li></ul><ul><li>Users in one room, engaging in tasks </li></ul><ul><li>Administrators in other room, recording info </li></ul><ul><li>Microphones between rooms </li></ul><ul><li>Sometimes contracted out to companies </li></ul>
  6. 6. Usability testing outside a lab <ul><li>In the field: </li></ul><ul><li>Real office, home, or other workplace environment </li></ul><ul><li>Testing takes place after something has been released </li></ul><ul><li>Real-world situations </li></ul>
  7. 7. Establish a team <ul><li>Collaborative testing produces good usability </li></ul><ul><li>Can be one or two people </li></ul><ul><li>All members of team must have interest in learning more about the usability of the product </li></ul><ul><li>Must have different viewpoints </li></ul>
  8. 8. Define the parameters of the test <ul><li>What is the time frame for the test? </li></ul><ul><li>What is the budget for the testing? </li></ul><ul><li>Where will the testing take place? </li></ul><ul><li>Who is the audience for the test results? </li></ul>
  9. 9. Define the user profile <ul><li>Identify the type of people: </li></ul><ul><li>Age </li></ul><ul><li>Education </li></ul><ul><li>Gender </li></ul><ul><li>Job type </li></ul><ul><li>Physical characteristics </li></ul><ul><li>Stress levels </li></ul>
  10. 10. Establish the issues and goals of the test <ul><li>Issues: </li></ul><ul><li>Will users be able to quickly and easily find the online registration from the home page? </li></ul><ul><li>Will users be able to recover quickly and easily if they make an error? </li></ul><ul><li>Goals: </li></ul><ul><li>Registration will be easy to reach, with only 1 mouse click from the homepage </li></ul><ul><li>Students will be able to review before submitting </li></ul>
  11. 11. Write the test plan <ul><li>Allows others to see what the test will accomplish </li></ul><ul><li>It is the outline for the test and its procedures </li></ul><ul><li>Clarifies the issues and goals </li></ul>
  12. 12. Components of a test plan <ul><li>Title page </li></ul><ul><li>Table of contents </li></ul><ul><li>Statement of purpose </li></ul><ul><li>Statement of test issues and goals </li></ul><ul><li>Description of test environment </li></ul><ul><li>User profile </li></ul><ul><li>List of participant tasks </li></ul><ul><li>Methods of evaluation </li></ul>
  13. 13. Recruit and screen participants <ul><li>Advertising in a newspaper </li></ul><ul><li>Searching through customer lists </li></ul><ul><li>Contacting professional organizations </li></ul><ul><li>Scanning a preformed database of qualified users </li></ul>
  14. 14. On the Web: useit.com <ul><li>http://www.useit.com </li></ul>