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Task Analysis and Contextual Inquiry
CS 160 Discussion Section February 7, 2006
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Interview Video Carlo, Mareesa, and Jessica
[0:51~5:00] Introduction Give purpose of visit, and then do general background information Participants start volunteering information about technology use [1:03:42-1:05:30] Learning about office computer setup Ask questions for clarification Prompted by things in the environment (ask about them!) [1:08:46-1:09:25] Managing digital photos [1:12:29-1:14:40] Scrapbooking Mareesa describes her scrapbook; she and Carlo articulate why paper scrapbooks are better than digital scrapbooks [1:16:04-1:17:00] PDA use Mareesa describes why she doesn’t use her PDA
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Contextual Inquiry Tips
Should be performed in teams, not by individual team members Interviewers: Different perspectives help create better understanding of users Note-taker: Record interesting events to look at later Photo, tape recorder, video Try out different roles in each interview
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Contextual Inquiry Tips
Use time after interview to analyze info and refocus for next interview Refocusing includes choosing subsequent interviewees Select interviewees who can develop our understanding of the users, their tasks and work contexts Karen Holtzblatt and Sandra Jones. “Conducting and Analyzing a Contextual Interview,” in Schuler and Namioka, Participatory Design: Principles and Practices, Lawrence Erlbaum Associates, 1993.
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Contextual Inquiry Tips
Make preliminary notes to focus interviews Clarify notes with interviewees If they use computers, ask what workarounds they resort to Don’t talk all the time Resume with interviewee’s words or thoughts if interrupt at an inconvenient time Karen Holtzblatt and Sandra Jones. “Conducting and Analyzing a Contextual Interview,” in Schuler and Namioka, Participatory Design: Principles and Practices, Lawrence Erlbaum Associates, 1993.
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Task Analysis Tips Use the questions from lecture
Easiest to work from transcripts Team analysis of interview transcripts Saves time in the long run Builds team ownership Come out with a clear understanding of the group’s focus Karen Holtzblatt and Sandra Jones. “Conducting and Analyzing a Contextual Interview,” in Schuler and Namioka, Participatory Design: Principles and Practices, Lawrence Erlbaum Associates, 1993.
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Task Analysis Tips Analyzing results is not the same as picking a final design Don’t skip “ludicrous” ideas immediately Don’t structure/categorize too early Consider affinity diagrams ( Use and reuse the interviewees’ language May need to validate interpretation with original interviewee Karen Holtzblatt and Sandra Jones. “Conducting and Analyzing a Contextual Interview,” in Schuler and Namioka, Participatory Design: Principles and Practices, Lawrence Erlbaum Associates, 1993.
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Practice Task Analysis Some Potential Task Domains
Waiter/Waitress Airline ticket agent Bus driver Car salesperson Newspaper editor Vacation planning
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Practice Task Analysis The Task Analysis Questions
Who is going to use system? What tasks do they now perform? (specify easy, medium, and hard tasks) What tasks are desired? How are the tasks learned? Where are the tasks performed? What’s the relationship between user & data? What other tools does the customer have? How do customers communicate with each other? How often are the tasks performed? What are the time constraints on the tasks? What happens when things go wrong?
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Administrivia VisualStudio 2005 and the Windows Mobile 5.0 SDK are installed in Soda 330 Online assignment submission Does anyone need help finding interview participants? Thanks to Matthew Kam for some of the slides…
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