System Analysis and Design
The strategy for eliciting information regarding the user's requirements is (are)

obtaining information from the present system
asking questions
prototyping
None of these
All of these

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System Analysis and Design
The approach used in top-down analysis and design is

to identify the top level functions by combining many smaller components into a single entity
to prepare flow charts after programming has been completed
to identify a top level function an d then create a hierarchy of lower-level modules and components.
all of the listed here

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System Analysis and Design
A square symbols

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

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