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

None of these
All of these
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

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System Analysis and Design
An open rectangle

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

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