System Analysis and Design
Advantages of Relational Database Management systems are

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

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System Analysis and Design
HIPO

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

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