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

to prepare flowcharts after programming has been completed
None of these
to identify the top level functions by combining many smaller components into a single entity.
to identify a top level function and then create a hierarchy of lower level modules and components
All of these

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System Analysis and Design
Most algorithms begin by _____.

Processing the input items by doing some calculations on them
Displaying the input items
Entering the input items into the computer
Displaying the output items
Entering the output items into the computer

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