System Analysis and Design
An open rectangle

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

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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 map of the programmer's view of the data
a group of related fields
a series or group of components that perform one or more operations of a more complex system

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