Sunil Parihar :: Nils Beck :: Jeremy Johnson :: Andy Wu

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powwow

• Sunil Parihar Nils Beck Jeremy Johnson
  Andy Wu

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Problem Space

• - Studied how people coordinate social activity.
• - Interview subjects had reliable methods for
  arranging activities planned in advance.
• - Examples Email, E-vite, phone calls to homes,
  MySpace, written invitations

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Problem Space
- These methods begin to fail for more
spontaneous activity. - Why? Information isnt
delivered in time. - For spontaneous planning,
interview subjects switched to mobile phones.
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Problems with mobile phones
- Can be interrupting to both the caller and the
called - Are socially inappropriate at times -
Requires the user to place numerous calls - Text
messages may be less intrusive, but they suffer
to a lesser degree from the same problems
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Objective
- Design a system to aid friends in the in the
coordination of spontaneous social activity -
Should create awareness of -- The desire to
socialize -- Current social activities --
Activities planned for the near future
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Target Users
- People between the ages of 18 and 35 with
existing groups of friends with whom they wish to
socialize.
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Requirements

• - Rapid adoption
• - High mobility
• - Hand-over to other channels of communication
• - Minimal distraction
• - Afford awareness of other users

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Design Alternatives
- MP3 Player - Mobile Phone - Counter-top Game
Kiosk
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Design Prototype mobile Phone

• Modeled after the buddy list of instant messaging
• -- User is represented with an avatar image and
  shout out message.
• -- May optionally share current and future
  locations and times.

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three views

• Button press cycles thru three views
• -- People
• -- Places
• -- Me

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people view
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place view
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me view
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Evaluation

• Expert
• - Heuristic Evaluation
• - Three experts selected from the class
• End User
• Five end users chosen from target population
• - Cooperative evaluation
• Semi-structured interview
• ore text/points I guess

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Results
- Despite a few usability issues, all end users
felt competent with the system after the
evaluations - 4 of 5 end users thought the
system could be useful for them
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Design Implications
Follow IM model more closely -- Reduce Me, People
and Places to one view -- Rename Check in to
Sign in -- Display inactive friends Reduce
reliance on menus -- More direct
manipulation Reduce input burden -- Provide
history of shout-out messages
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Conclusions
Give your evaluation subjects ample time -- to
orient themselves with your system -- to answer
questions Prototyping on a real mobile phone had
advantages and disadvantages Designing for the
small screen and limited input of mobile phones
is hard.
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Future Directions
Refine UI based on evaluations
Implement Communication layers
Field trial with a group of friends
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but first Questions
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Expert Evaluation

• Heuristic Evaluation
• Three experts selected from the class.
• needs more text/points I guess

etcetra 1
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End-User Evaluation

• Five end users chosen from target population
• - Cooperative evaluation
• Semi-structured interview
• needs more text/points I guess

etcetra 2
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etcetra 2