System Analysis and Design
Acceptance testing is

making sure that the new programs do in fact process certain transactions according to Specifications
running the system with line data by the actual user
is checking the logic of one or more programs in the candidate systems
testing changes made in an existing or a new program

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System Analysis and Design
An open rectangle

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

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System Analysis and Design
Unit testing is

None of these
is checking the logic of one or more programs in the candidate system
testing changes made in an existing or a new program
running the system with line data by the actual user
making sure that the new programs do in fact process certain transactions according to Specifications

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