System Analysis and Design
The Turnaround is

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

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System Analysis and Design
A square symbols

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

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

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

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