System Analysis and Design
In processing controls must be established in a system, in order to

None of these
Verify that all data have been processed
block or trap faulty data from entry into processing
All of these
prohibit tampering with information by unauthorized person

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System Analysis and Design
The approach used in top-down analysis and design is

all of the listed here
to identify a top level function an d then create a hierarchy of lower-level modules and components.
to prepare flow charts after programming has been completed
to identify the top level functions by combining many smaller components into a single entity

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