System Analysis and Design
Tracing, of any input record or process, performed on a system, back to its original source, is an

None of these
report generation
conversion
batch processing
audit trial

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System Analysis and Design
Sequential organization

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

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System Analysis and Design
In a Decision tree

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

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