Iconic Linkage as
a Cognitive Strategy
Original Instance
Betätigen Sie die
PROG-Taste.
Second Instance
Drücken Sie nun die
ENTER-Taste.
Translation Press
the
XXXX button.
(The two sentences are a XX% surface match)
Original Instance
Die Maschine bleibt im
PROG-Modus.
Second Instance
Die Maschine befindet sich im
Arbeits-Modus.
Translation
The machine is now in
XXXX Mode.
(The two sentences are a 67% surface match)
Table 7: Examples of Introduced Iconic Linkage – Partial
Iconic Linkage as a Cognitive Strategy
As discussed earlier, principles are general goals or objectives which may
give rise to several guidelines and local rules. So for example,
the principle
which states that a user’s STM capacity of 7±2 chunks of information
should not be overburdened might give rise to guidelines to the effect that
sentences should be kept short and contain simple and familiar words
(which can be grouped into larger
chunks of information, thereby reducing
the number of chunks the reader has to retain).
However, these guidelines can also prove effective in implementing
other, perhaps completely different principles. For instance,
the idea of us-
ing simple and familiar words may also be used as a way of minimising us-
ers’ memory load because people find it easier to recall the meaning of
words which are used frequently. Similarly, while
keeping sentences short
may reduce STM load, it can also reduce the possibility of the reader be-
coming distracted by some other stimulus. This idea is related to the princi-
ples of saying only what is necessary, presenting
information in a logical
171
Usability Engineering
way, and preventing errors by limiting the number of available options or
choices. As Kellogg puts it
…adopting cognitive strategies that circumvent attentional overload may
be one key to optimum writing performance (Kellogg 1988:355-6)
If we relate Iconic Linkage
to the concept of principles, guidelines and
rules, we can say that Iconic Linkage is a guideline which states “always
present information which is repeated throughout a text using exactly the
same formulation of words and structures”. This guideline itself draws on
several principles such
as consistency, reducing STM load etc., but gives rise
to manifold rules which can consist of various efforts to regulate the ways in
which information can be formulated and presented in a text.
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