billpapa.org Reading (b)log

In an interesting lecture, Don Norman extended his human action cycle model, by including a second “intelligent” machine action cycle. This gives rise to three new gaps:

• Goal Gap: Goals of Machine and Person can be different
• Action Gap: The actions taken (or want to undertake)
• Knowledge Gap: Machine and Person don’t know the same things

Norman being -a good popularizer- avoids explicitly using Distributed Cognition or ANT: this leads to a weaker model (I cannot imagine an analyses using it). But as a simplified notion it is an excellent teaching tool that communicates these notions, especially to designers.

References

Norman, Don February 9, 2007 .The Design of Future Things: Cautious Cars and Cantankerous Kitchens. Don Norman, Northwestern University and Nielsen-Norman Group

Soegaard, Mads (2003). Interaction-Design.org Encyclopedia: Gulf of Evaluation and Gulf of Execution. Retrieved March 17, 2007 from Interaction-Design.org: http://www.interaction-design.org/encyclopedia/gulf_of_evaluation_and_gulf_of_execution.html

technorati tags:cognitive, ergonomics, hci

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