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The most
frequent error that inexperienced analysts make during
cost/benefit analysis is to try to do the calculations before thoroughly
defining
the
costs
and
benefits.
A
cost
and
benefit
analysis
that
does
not have thorough and complete supporting detail is valueless.
Another
method
that
organizations
use
to
determine
whether
an
investment
will be beneficial is determining the payback period. The payback period,
sometimes called the breakeven point, is the point in time at which the
increased cash flow (benefits) exactly pays off the costs of development and
operation.
2.2.6 Interview
According to Donald R. Cooper and Pamela S. Schindler [McGraw-Hill,
2006], Interview is the primary data collection technique for gathering data in
qualitative
methodologies.
It’s
vary
based
on
the
number
of
interview
conducted
during
the research, the number of people involved during the
interview, the level of structure and the proximity of the interviewer to the
participant.
Certain
interviews
are
conducted
individually
(individual
depth
interview,
or
IDI)
or
in
group.
It
also
can be
conducted
face-to- face
with
the
benefits
of
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