System Analysis and Design
Acceptance testing is

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

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System Analysis and Design
The rule(s) to follow in constructing decision tables is (are):

all of the listed here
standardized language must be used consistently.
the logic of the table is independent of the sequence in which conditions rules are written, but the action takes place in the order is which the events occur.
a decision should be given a name

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System Analysis and Design
A square symbols

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

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