1. the human


What can a system designer do to minimise the memory load of the user?

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Discuss two ways of remembering - recognition is the knowledge that you have seen something presented to you; recall is the reproduction of something from memory. Recognition is simpler - the information required is provided as the cue. Recall is more complex as the information has to be retrieved from memory but cues can help this - e.g. using categories or images. The interface designer can where possible allow recognition by providing information up front (e.g. labelled buttons). Where this is not possible support recall by using cues such as iconic images, categories of menu item. The answer may also discuss short term memory where chunking and restricting number of items are important.

Other exercises in this chapter

ex.1.1 (ans), ex.1.2 (ans), ex.1.3 (ans), ex.1.4 (tut), ex.1.5 (tut), ex.1.6 (open), ex.1.7 (open), ex.1.8 (tut), ex.1.9 (tut), ex.1.10 (tut), ex.1.11 (tut), ex.1.12 (tut), ex.1.13 (tut), ex.1.14 (tut)

all exercises for this chapter