Design of Everyday Things by Norman Don

Author:Norman, Don [Norman, Don]
Language: eng
Format: mobi
ISBN: 9780786744718
Publisher: Basic Books
Published: 2002-09-18T16:00:00+00:00

NARROW STRUCTURES

A cookbook recipe is a good example of a narrow structure (figure 5.3). A narrow structure arises when there are only a small number of alternatives, perhaps one or two. If each possibility leads to only one or two further choices, then the resulting tree structure can be said to be narrow and deep.

Just as the ice cream store menu is an example of a shallow structure, the multicourse, fixed menu meal can serve as an example of a deep structure. Although there may be many courses, for each course the diner is either automatically served the relevant dish or offered the choice of one or two dishes. The only action required is to accept one or to refuse: no deep thought is required.

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