System Analysis and Design
An open rectangle

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

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

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System Analysis and Design
Sequential organization

uses an index for each key type
means storing records in contiguous blocks according to a key.
None of these
Stores records sequentially but uses an index to locate records
has records placed randomly throughout the file

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