System Analysis and Design
A common reason for changing an information system is

None of these
problems in the existing system
All of these
new requirements
new technology

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System Analysis and Design
Unit testing is

is checking the logic of one or more programs in the candidate system
testing changes made in an existing or a new program
running the system with line data by the actual user
None of these
making sure that the new programs do in fact process certain transactions according to Specifications

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System Analysis and Design
Which of the following is not true of the conversion phase of the development life cycle?

the non machine components of the system should be considered
steps must be taken to phase out the old system
the user and systems personnel must work closely together
documentation should be emphasized

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