System Analysis and Design
A system design aid should primarily

help in documentation
help analyse both data and activities
using a graphical user interface
generate code

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

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

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System Analysis and Design
A square symbols

represents a process that transforms incoming data flow(s) into outgoing data flows
identifies data flow
defines a source or destination of system data
None of these
is a data store-data at rest, or a temporary repository of data

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System Analysis and Design
Data Definition Language (DDL)

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
describes how data are structured in the data base
all of the listed here

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