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CS3205 , HW2, Spring 2011 Evaluation Assignment. Part 1: Proposal (Email to uvacs3205@gmail.com by 5pm, Friday, Feb. 11) A short description of what you plan to evaluate (2-3 lines is enough) Names of group members (3-4 people) Possible participants for your evaluation

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cs3205 hw2 spring 2011 evaluation assignment
CS3205, HW2, Spring 2011 Evaluation Assignment
  • Part 1: Proposal (Email to uvacs3205@gmail.com by 5pm, Friday, Feb. 11)
    • A short description of what you plan to evaluate (2-3 lines is enough)
    • Names of group members (3-4 people)
    • Possible participants for your evaluation
  • Choose any software / system to evaluate as long as:
    • You are at least somewhat familiar with it
    • You can find two or more participant users who are not experts
    • You can run the software / system in an experimental manner
    • It must involve some input/interaction as well as output. (Don’t want it to be passive for participant. GUI not required)
    • Web site? Only if it has some interesting complexity
    • Device? Probably OK. Game? Probably OK, if focused.
evaluation assignment
Evaluation Assignment
  • Focus on some aspect of the software
    • Just part of a system if it’s complex
    • Focus on several usability goals
    • The user interactions that implement one to three tasks that all together can be done by an expert in, say, 20 minutes
    • Ideally a frequently used or complex part of the software
      • You choose what goals matter to you. E.g. maybe you do or don’t want to include learnability or efficiency
evaluation assignment1
Evaluation Assignment
  • Perform a co-operative evaluation and analysis of usability defects
    • Do a dry run with someone in your team
    • Remember that co-operative evaluation requires both you and the participant to verbalize
    • Your participants should not be experts but should be able to use or learn the software fairly quickly
  • If asked, you must volunteer to be someone else’s participant!
  • Also, create a table like that presented in lecture slides to evaluate success in tasks
  • Keeps good notes and records!
evaluation assignment your report
Evaluation Assignment: Your Report

Turn in a report as follows on Mon., Feb. 21, 11:30 pm

  • A description of the specific software or system and its aspects that are being evaluated.
    • Be sure to what the specific goals are for your evaluation! Just a subset of the system? Specific goals for this evaluation?
  • A summary of your procedures
    • When, where, how did you do your evaluation? (Only enough detail so I can see that you followed good procedures.)
    • Also, what tasks did you ask the participants to do?
      • Should include copies of the task descriptions you gave the user
  • (see next page)
your report cont d
Your report (cont’d)
  • A list of all usability defects or problems by the user that you observe
    • What happened? What usability principle is violated?
    • OK if this has only a little detail, but feel free to add more detail if you wish
  • A more detailed analysis of the most serious defects (at least four defects)
    • Choose defects in the system’s design
      • How it supports tasks, or its conceptual model, or its interaction style, or problems with specific UI elements
    • State when error occurs in the goal/decide/execute cycle
    • Excerpt from your notes (quotes if possible) on what happened with the user(s) in the evaluation
    • Cause of the problem
      • More details than given in step 3 above. Make appropriate use of concepts of usability principles etc.
    • Any other appropriate detail from slides on usability defects
    • Recommendations for changes in the system
your report cont d1
Your report (cont’d)
  • The table like Figure 12.9 (p. 610) for each task evaluated
    • But, list high-level tasks based on a user-goal here!
      • If something obvious, or easy, why bother?
      • Use this to evaluate how well the system serves user needs
    • Examples of good choices:
      • Add new entry to phonebook
      • Find and play specific MP3 file by name
      • Compose and send an email
    • Examples of bad choices:
      • Type in phone number
      • Pause the player (assuming there’s a pause-button)
      • Enter the body of the email message
  • A summary of any subjective comments made by your participants in the “wrap-up” discussion you have at the end of your evaluation.