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Usability Testing Methods
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Usability Testing Methods Presentation Transcript

  • 1. USABILITY TESTING
  • 2. Usability MethodologiesCard SortingCharrettesCognitive WalkthroughsContextual Task AnalysisFacilitated BrainstormingFocus GroupsHeuristic EvaluationOne-on-One InterviewParticipatory DesignSurveysUsability TestingQuality Assurance TestingHCI Design ApproachesUser Experience Modeling
  • 3. Usability MethodologiesCard SortingCharrettesCognitive WalkthroughsContextual Task AnalysisFacilitated BrainstormingFocus GroupsHeuristic EvaluationOne-on-One InterviewParticipatory DesignSurveysUsability TestingQuality Assurance TestingHCI Design ApproachesUser Experience Modeling
  • 4. Deciding Which Methodology To UseDepends on Several Factors Including:- What Information you are trying to obtain- How far along in the life cycle of the project- Budget (Time as well as Monetary)
  • 5. What Is Usability Testing?Usability testing usually involves systematic observationunder controlled conditions to determine how well peoplecan use a product.
  • 6. What Is Usability Testing?Usability testing usually involves systematic observationunder controlled conditions to determine how well peoplecan use a product.
  • 7. What Is Usability Testing in IxD?In interaction design, usability tests are used to measure theinteractive user experience associated with a user interface,such a website, software application, or mobile application.
  • 8. What Is Usability Testing in IxD?In interaction design, usability tests are used to measure theinteractive user experience associated with a user interface,such a website, software application, or mobile application.
  • 9. What Is Usability Testing in IxD?In interaction design, usability tests are used to measure theinteractive user experience associated with a user interface,such a website, software application, or mobile application. “A person’s perceptions and responses(emotional, mental, physical, etc.) that result from the use or anticipated use of a product, system or service...” Factors that influence user experience: 1. System 2. User 3. Context of use
  • 10. Conducting A Usability Test1. Recruiting Participants2. Creating Task List3. Conducting a Usability Test4. Usability Test Analysis
  • 11. Conducting A Usability Test1. Recruiting Participants2. Creating Task List3. Conducting a Usability Test4. Usability Test Analysis When conducting a usability test, it is optimal to recruit the primary or secondary users of the product. Testing users who are not the primary or secondary users will still yield problems with the product. Testing someone is better than testing no one.
  • 12. Conducting A Usability Test1. Recruiting Participants2. Creating Task List3. Conducting a Usability Test4. Usability Test Analysis In the early 90s, Jakob Nielson popularized the concept of using numerous small usability tests, typically with only five test subjects each. # Issues found 5 10
  • 13. Conducting A Usability Test1. Recruiting Participants2. Creating Task List3. Conducting a Usability Test4. Usability Test Analysis Typically, participants will perform a set of 5 to 10 tasks. Tasks should represent the most common user goals and have clearly defined criteria for success.
  • 14. Conducting A Usability Test1. Recruiting Participants2. Creating Task List3. Conducting a Usability Test4. Usability Test Analysis When conducting user testing, the researcher reads a participant one task at a time, and allows the participant to complete the task without any guidance. To prevent bias, the researcher follows the same “script” when explaining the task to each participant. The researcher may also ask the participant to talk aloud as he works on a task to better understand the participant’s mental model for the task
  • 15. Conducting A Usability Test1. Recruiting Participants2. Creating Task List3. Conducting a Usability Test4. Usability Test Analysis When all participants have completed the usability test, the designer will compile the data to determine the severity of each issue that was encountered and provide prioritized recommendations/solutions.
  • 16. Further ReadingsDon Norman The Design of Everyday ThingsJakob Nielsen Usability Engineering Designing Web UsabilitySteve Krug Don’t Make Me Think: A Common Sense Approach to Web Usability Rocket Surgery Made Easy: The Do-It-Yourself Guide to Finding and Fixing Usability Problems
  • 17. PAPER PROTOTYPEUSABILITY TESTING http://www.youtube.com/watch?v=_g4GGtJ8NCY