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UI Design & Testing Posture Correction System

UI Design & Testing Posture Correction System. Nigel Thompson January, 2007. Goals. Test the usability of a user interface for a software product designed to correct posture problems through exercise Use low-fidelity methods to obtain results quickly at low cost. Tasks Assessed.

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UI Design & Testing Posture Correction System

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  1. UI Design & TestingPosture Correction System Nigel Thompson January, 2007

  2. Goals • Test the usability of a user interface for a software product designed to correct posture problems through exercise • Use low-fidelity methods to obtain results quickly at low cost

  3. Tasks Assessed • Establish the correct position in front of the camera for posture assessment as directed by the program • Perform a set of simple exercises as directed by the program

  4. Test Measurements • Task completion: success or failure • Time taken to complete the task • Number of errors made during the task • Number of requests for help during the task

  5. Participants • The pool of four participants was selected at random from wife and kids • Wide age range • Wide attitude range • Wide education range • Some hostility to being used as a test subject

  6. Test Materials • Scripts to conduct the tests • Forms for background and post-test • Paper mockups of computer screens • Laptop computer with video camera to show live image of test subject

  7. Test Environment

  8. Test Environment

  9. Test Environment

  10. Computer Mockup

  11. Sample Screen

  12. Laptop Computer

  13. Results • Task execution times greatly exceeded maximum expected times • There were no requests for help • Several common errors were made

  14. Analysis of Testing • A dry run would have been very helpful in refining the technique • It takes more than one person to run a test • For this testing, two video cameras would have been better • A more representative selection of real users may have helped

  15. Video of a Task

  16. Video of User from Laptop

  17. What was Learned • Low-fidelity testing is fast and effective • Preparing the testing using a dry run is essential • Ensure scripts are adhered to • Don’t prompt the test subjects • Take time to do things correctly • Have enough subjects so the disasters can be omitted

  18. Summary of the Testing • Most subjects had some problem with the positioning test when it was time to return to the computer • The wording on some screens needs to be improved for lower education level users • Audio prompts seem to be effective

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