The programmer should aim towards module independence. That
is,
towards modules which have fewer and simpler connections with
other modules.
The
fewer these connections, then
the
easier
it is to
maintain
one
module without reference
to
other modules. These
connections are called
interfaces
or
couples.
Coupling
is a
measure
of the
extent
of
information interchange
between modules. Tight coupling implies large dependence
on the
structure
of
on
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