System Analysis and Design
Which of the following is not an advantage of the structured approach to system development?

the user area is studied thoroughly
the system specification is very graphic
the documentation is Cumulative
it focuses on the physical aspects of the system
None of these

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System Analysis and Design
A square symbols

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

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System Analysis and Design
Unit testing is

running the system with line data by the actual user
is checking the logic of one or more programs in the candidate system
making sure that the new programs do in fact process certain transactions according to Specifications
testing changes made in an existing or a new program
None of these

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