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

crash conversion
None of these
parallel run
pilot conversion
phased conversion

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System Analysis and Design
In top down analyis and design

all of the listed here
each succeeding phase is less detailed than the phase before it
each succeeding phase is more detailed than the phase before it
each succeeding phase is as detailed as the phase before it.

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System Analysis and Design
Top-down programming is

a group of related fields
a series or group of components that perform one or more operations of a more complex system
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

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