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

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

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System Analysis and Design
Positive testing is

making sure that the new programs do in fact process certain transactions according to Specifications
testing changes made in an existing or a new program
running the system with line data by the actual user
is checking the logic of one or more programs in the candidate system

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