System Analysis and Design
The two classification of inputs are:

energies and maintenance
maintenance and signal
products and waste
maintenance and waste
None of these

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System Analysis and Design
A menu-driven system

can be used only by computer professionals
presents options and allows the user to make selections
increases the operator's work
is required only for on-line systems
None of these

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System Analysis and Design
Top-down programming is

a map of the programmer's view of the data
an approach in which the top module is first tested then program modules are added from the highest level to the lowest level
a group of related fields
a series or group of components that perform one or more operations of a more complex system

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