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 branch, to be followed, depends on the conditions and decisions, to be made
the nodes represent the conditions, with the right wise of tree listing the actions to be taken
all of the listed here

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System Analysis and Design
Direct-access organization

uses an index for each key type
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.

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System Analysis and Design
Data Definition Language (DDL)

specifies for the DBMS what is required; the techniques used to process data
all of the listed here
determine how data must be structured to produce the user's view
describes how data are structured in the data base

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System Analysis and Design
A structure chart is

All of these
a hierarchical partitioning of the program
None of these
a statement of information processing requirements
a document of what has to be accomplished

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