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

crash conversion
None of these
phased conversion
parallel run
pilot conversion

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System Analysis and Design
Acceptance testing is

running the system with line data by the actual user
testing changes made in an existing or a new program
is checking the logic of one or more programs in the candidate systems
making sure that the new programs do in fact process certain transactions according to Specifications

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