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

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

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System Analysis and Design
A square symbols

None of these
identifies data flow
is a data store-data at rest, or a temporary repository of data
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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