Technical Communication
a file under a different name in Microsoft Excel would be equally effective
at explaining how to copy a document
to another location using
Microsoft
Word
). Thus, modules can, according to Weiss (
ibid.
), become part of a
“library of reusable modules”. And so these modules eventually
resemble a
set of stock modules which can be picked and mixed by writers.
We know that modules perform only one function (even though this func-
tion can be performed in a number of contexts). But this does not give us a
clear understanding of how small a module should be. It could be argued
that it is impossible to say with any degree of certainty how small is small.
As modules
get larger, they begin to incorporate more functions and begin
to lose cohesiveness. On the other hand, however, as they
get smaller, the
links between modules become more complicated. So in the absence of any
real alternative, we find ourselves faced with a balancing act of “not too
much, but just enough”. A practical approach would be to concentrate on
one “task” as opposed to a function.
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