System Analysis and Design
The outstanding Invoice file should be stared on a Pardon Access Storage Device if

inquires concerning payable are to be answered on-line
payment recording is done in a batch rode
last record points to the first record
invoice data entry is on-line.
None of these

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System Analysis and Design
An open rectangle

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

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System Analysis and Design
A couple:

is represented by a line joining two modules
None of these
means that the upper module has the capability of calling the lower module
None of these
is a data item that moves from one module to another

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