System Analysis and Design
A design that consists of a hierarchy of modules; each module has a single entry and a single exit subroutine, is known as

None of these
top-down design
Tuple
hierarchy structure
Turnaround

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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
running the system with line data by the actual user
testing changes made in an existing or a new program
is checking the logic of one or more programs in the candidate system

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