System Analysis and Design
In functional decomposition, the data flow diagram

is ignored
is partitioned according to the "closeness" of the datagrams and data storage items
both (a) and (c)
None of these
is partitioned according to the logical "closeness" of the actigrams

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System Analysis and Design
Cost-Benefit analysis

evaluates the tangible and non-tangible factors
estimates the hardware and software costs
compares the cost, with the benefits, of introducing a computer-based system
None of these
All of these

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