Information Technology Reference
In-Depth Information
For more formal methods and models of interaction programming, read Harold
Thimbleby's text Press On:
Thimbleby, H. (2007). Press on—Principles of interaction programming. Cambridge,
MA: MIT Press.
If you want to know more about field based and participatory requirements
gathering, a well known method is Contextual Design. This is described in this text:
Beyer, H., & Holtzblatt, K. (1997) Contextual design: Defining customer-centered sys-
tems. San Francisco, CA: Morgan Kaufmann.
Finally, cognitive modeling can offer enormous gains when you are thinking
about how users think. An excellent introduction to this area of research and
application is:
Gray, W. D. (Ed.). (2007). Integrated models of cognitive systems. New York: Oxford
University Press.
2.6 Exercises
2.1 Consider a smartphone, either a specific one or a composite one, and consider
the human factors of using it. What are the issues that each field of HCI,
human factors, and cognitive ergonomics address?
Write short notes (about one side of a page in total) noting the issues on
these three types of analyses.
2.2 Pick a company's web site or a university department's web site. Summarize
in note form how each of the major fields noted in this chapter would analyze
it and its users. Note what would be the outputs and typical recommendations.
Which approach would you prefer to apply to the web site you choose? Note
the relative value and the absolute value of each. That is, which gives the best
results for the amount of inputs, and which gives the best value without regard
to cost?
2.3 When you go home tonight, take a look at your kitchen. Look at all the displays
in the kitchen and summarize what information they contain and when you
would use that information. Look at the layout of the kitchen and think about
whether things are placed in the most convenient place to make your move-
ments through the kitchen when you are cooking as efficiently as possible.
Make your favorite snack and draw a picture of how you move through the
kitchen. Note how the kitchen can be improved based on your analysis,
including both no-cost and expensive changes. This exercise is designed to
make you think more deeply about the physical, cognitive, behavioral, and
information issues that go into how optimized your kitchen is for you to use.
2.4 Analyze Hedge's ( 2003 ) set of design principles in Table 2.1 . These principles
arose out of installing a popular operating system.
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