System Analysis and Design
The processes at the most detailed level of the data flow diagrams are called

functional primitives
data flows
None of these
interfaces
transform descriptions

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System Analysis and Design
In a Decision tree

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

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