System Analysis and Design
Advantages of Relational Database Management systems are

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

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System Analysis and Design
A structure chart is

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

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