System Analysis and Design
A square symbols

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
defines a source or destination of system data
identifies data flow
None of these

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System Analysis and Design
The Turnaround is

None of these
the key information of programming
a program statement that violates one or more rules of the language in which it is written
the elapsed time between the receipt of the input and the availability of the output
a group of related fields

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System Analysis and Design
Top-down programming is

an approach in which the top module is first tested then program modules are added from the highest level to the lowest level
a group of related fields
a map of the programmer's view of the data
a series or group of components that perform one or more operations of a more complex system

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