System Analysis and Design
In a Decision tree

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

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System Analysis and Design
Inverted list organization

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

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