System Analysis and Design
In top down analyis and design

each succeeding phase is more detailed than the phase before it
each succeeding phase is as detailed as the phase before it.
all of the listed here
each succeeding phase is less detailed than the phase before it

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System Analysis and Design
The black-box concept:

All of these
None of these
is invoked by describing a system in terms of inputs and outputs, leaving the transformation process a black box.
assumes that inputs and outputs will remain stable
assumes that the black box is independent

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System Analysis and Design
In Decision trees

the branch depends on the condition and decisions to made
None of these
All of these
the root is drawn on the left and is the starting point on the decision sequence.
nodes represent the conditions, with the right side of tree listing the actions to be taken

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System Analysis and Design
A structure chart is

None of these
a statement of information processing requirements
a hierarchical partitioning of the program
a document of what has to be accomplished
All of these

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