System Analysis and Design
The data base be prepared until

the preparation of physical facilities
the computer has been selected
the MIS staff has been acquired and organized
None of these
All of these

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System Analysis and Design
A couple:

None of these
is represented by a line joining two modules
is a data item that moves from one module to another
None of these
means that the upper module has the capability of calling the lower module

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System Analysis and Design
Cost-Benefit analysis

evaluates the tangible and non-tangible factors
compares the cost, with the benefits, of introducing a computer-based system
All of these
estimates the hardware and software costs
None of these

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System Analysis and Design
Advantages of Relational Database Management systems are

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

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