Notification systems on large displays

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Notification systems on large displays

• Alain Fabian
• Saurabh Bhatia

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Semi-Public Displays for Small, Co-located Groups

• Elaine M. Huang
• Elizabeth D. Mynatt

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Semi-Public Displays

• For small co-located group environments,
  specifically the academic lab setting.
• Provide information about group members, and
  foster coordination and collaboration.
• Make information easily available and reduce the
  need for group members to remember or retrieve it
  from overloaded channels, such as email.
• Information relevance, audience targeting, and
  information scoping differs from regular large
  screen awareness displays because of group size.

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Semi-Public Displays
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SPD uniqueness

• Success ability of the application to provide
  relevant content extent to which the
  application addresses privacy concerns.
• Systems for promoting awareness in large groups
  that rely on user-submitted content tend to be
  uninformative because content is not of interest
  to much of its audience.

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SPD uniqueness

• Detailed information about individuals is more
  likely to be of relevance to the group as a
  whole.
• Personal information may be more appropriate
  among a group of co-located co-workers, who are
  likely to share context and have more personal
  knowledge of each other.
• Communication and collaboration within small
  groups is often greater than that of large,
  distributed groups ? more important for
  individuals in a small group to have access to
  information about their co-workers.

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Designing for SPDs

• Reminders brief requests or facts displayed to
  foster discussion and enhance awareness of group
  members.
• Collaboration Space designated shared
  interactive spaces for asynchronous group work.
• Active Portrait a graphical representation of
  the group that provides an overview of group
  activity over time.
• Attendance Panel an abstract visualization of
  planned attendance at upcoming events to reflect
  group interests.

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SPD design
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Results of evaluation

• Worked well
• Reminders
• useful to maintain awareness of group members
  day-to-day work status as well as for getting
  help with both short-term and long-term tasks
• Attendance panel
• useful for maintaining awareness of others plans
  as well as determining whether events were of
  interest to them.
• Did not work so well
• Collaboration space
• Interesting but not useful, difficult to interact
  with
• Active portraits
• Difficult to distinguish levels of fading,
  inaccuracies of keyboard input.

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Interactive Public Ambient Displays
Transitioning from Implicitto Explicit, Public
to Personal, Interaction with Multiple Users

• Daniel Vogel, Ravin Balakrishnan

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Interactive public ambient displays

• Public displays can be used to access our
  personal information securely and easily.
• We may no longer have to carry around personal
  devices like PDAs or laptops to access all our
  personal information.
• Design goal is for a single display to fluidly
  serve the dual role of public ambient or personal
  focused display depending on the context that is
  inferred from a few key variables, including an
  individuals level of attention to the display,
  and the relationship of available information to
  an individual currently near the display.

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Design principles

• Calm Aesthetics
• Aesthetics of the displayed information, and how
  the interface subtly reacts to input and fluidly
  signals state changes.
• Comprehension
• An interactive display should reveal meaning and
  functionality naturally.
• Notification
• Cues such as users walking speed and direction,
  gaze, conversation, and proximity to the display
  could be used to determine the interruptability
  tolerance of a potential user.
• Short-Duration Fluid Interaction
• Tasks for quick information queries rather than
  involved activities, no sign-in/out.

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Design principles

• Immediate Usability
• Learning by exploration
• Shared Use
• Share the system either individually or
  collaboratively whether interacting implicitly,
  explicitly, or simply viewing the ambient
  display.
• Combining Public and Personal Information
• When appropriate weave an active users harmless
  personal information into the ambient display.
• Privacy
• Techniques to discourage other users from
  eavesdropping
• The display of personal information should be
  controlled by the user.

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Calm aesthetics design
Weather Office activity Calendar Email/M
essaging
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Interaction phases
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Interactions
Features Vertical Bar user interaction
area Subtle notifications Different detail
levels Personal vs. Private approach
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Video description of the system

• http//www.dgp.utoronto.ca/ravin/videos/uist2004_
  ambient.avi

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Discussion

• Personal vs. Public information which design
  approach is best?
• Should interaction require learning gestures,
  even if simple in public displays?
• Tradeoff Interruption vs. Comprehension for
  public displays.
• Do you find the calm aesthetics design
  un-interruptive?
• Do you understand the meaning? Would you
  understand its meaning at a glance if you didnt
  see it before?
• Do you think these kind of displays can replace
  PDAs assuming they would be everywhere?