System Analysis and Design
Which of the following appropriately explains the desirable characteristic of good system design?

Modular approach
Long discussions
Conversion
Proper documentation

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System Analysis and Design
A menu-driven system

None of these
is required only for on-line systems
can be used only by computer professionals
presents options and allows the user to make selections
increases the operator's work

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System Analysis and Design
Data Definition Language (DDL)

all of the listed here
specifies for the DBMS what is required; the techniques used to process data
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
An audit trial is

All of these
None of these
post-auditing the system after its implementation
designed to permit tracing of any input record or process performed on a system, back toits original sources
test data used by the system auditor

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