System Analysis and Design
The approach used in top-down analysis and design is

to identify a top level function an d then create a hierarchy of lower-level modules and components.
all of the listed here
to prepare flow charts after programming has been completed
to identify the top level functions by combining many smaller components into a single entity

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

None of these
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.

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