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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System Analysis and Design
The term Parallel Run refers to

the concurrent operation of an existing system and a new system
the same job run on two different computer to test their speeds
None of these
the processing of two different jobs initiated from two terminals.
All of these

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System Analysis and Design
Inverted list organization

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
None of these

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