System Analysis and Design
Which of the following is not a characteristic of structured system development?

partitioning of systems into manageable levels of detail
All of these
specification of the interfaces between modules
None of these
the use of graphical tools, such as data-flow diagrams, to model system

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System Analysis and Design
Data Definition Language (DDL)

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

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

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

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