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
making sure that the new programs do in fact process certain transactions according to Specifications
None of these
running the system with line data by the actual user

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

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

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System Analysis and Design
Data Definition Language (DDL)

determine how data must be structured to produce the user's view
all of the listed here
specifies for the DBMS what is required; the techniques used to process data
describes how data are structured in the data base

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