System Analysis and Design
The systems conversion technique of totally removing the existing system and immediately implementing the new system is called a

None of these
parallel run
pilot conversion
phased conversion
crash conversion

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System Analysis and Design
Top-down programming is

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

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