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

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

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System Analysis and Design
Data Definition Language (DDL)

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

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