System Analysis and Design
An open rectangle

None of these
identifies data flow
is a data store-data at rest, or a temporary repository of data
defines a source or destination of system data
represents a process that transforms incoming data flow(s) into outgoing data flows

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System Analysis and Design
In Decision trees

All of these
None 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
the branch depends on the condition and decisions to made

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