System Analysis and Design
A menu-driven system

None of these
is required only for on-line systems
presents options and allows the user to make selections
can be used only by computer professionals
increases the operator's work

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System Analysis and Design
In a Decision tree

all of the listed here
the nodes represent the conditions, with the right wise of tree listing the actions to be taken
the branch, to be followed, depends on the conditions and decisions, to be made
the root is drawn on the left and is the starting point on the decision sequence

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