Direct manipulation vs' Agents

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• Direct manipulation vs. Agents
• Ben Shneidermann vs. Pattie Maes
• The communicative approach
• Esther Wolting
• S1396080
• Computer Mediated Communication A
• 25 - 09 - 2006

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• Benefits of agents
• It requires less work from the user and
  application developer
• The agent can easily adapt to the user over time
  and become customized to individual and
  organizational preferences and habits

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• Direct Manipulation
• Goal To create environments where users
  comprehend the display, where they feel control,
  where the system is predictable, and where they
  are willing to take responsibility for their
  actions

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• Discussion
• Shneiderman Users want to have the feeling they
  did the job not some magical agent
• Maes ..not because you cant deal with those
  tasks yourself, but because you are overloaded
  with work and information

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• Compromise
• MaesAgents are not an alternative for direct
  manipulation. They are actually complementary
  metaphors. An agent is not a substitute for an
  interface.
• ShneidermanThe agents take care of the
  processes below the table, and there is a nice
  direct manipulation interface that the user
  sees.

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• Question what do you think?
• It would be hard to program an agent to
  anticipate all of the possibilities that your eye
  can pick up in 1/10th of a second.
• 20 30 years ago we mostly dealt with
  professional users. Todays users do not even
  know how to program their VCRs. How are they
  going to deal with user interfaces?