torsdag, mars 16, 2006

The Design of Everyday Things (p.48 f)

"For many everyday tasks goals and intensions are not well specified:
they are opportunistic rather than planned. Opportunistic actions are
those in which the behaviour takes advantage of the circumstances.
Rather than engage in extensive planning and analysis, the person goes
about the day's activities and performs the intended actions if the
relevant opportunity arises. Thus, we may not go out of our way to go to
a shop, or to the library, or to ask a question of a friend. Rather, we
go through the day's activities, and if we find ourselves at the shop,
near the library, or encountering a friend, the we allow the opportunity
to trigger the relevant activity. Otherwise, the task remains undone. Only
in the case of crucial tasks do we make special efforts to ensure that
they get done. Opportunistic actions are less precise and certain than
specified goals and intensions, but they result in less mental effort,
less inconvenience, and perhaps more interest."

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