System Analysis and Design
Advantages of Relational Database Management systems are

All of these
Data independence since it allows the database to grow by adding new attributes and relations.
Flexibility, of relating different logical files
Security controls can be more easily implemented.
None of these

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System Analysis and Design
HIPO

consists of a hierarchy chart and an associated set of input/process/ output charts
is a forms-driven technique in which standard forms are used to document the information
None of these
All of these
captures the essence of top down decomposition.

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