System Analysis and Design
The records in a file on magnetic tape

have to be arranged in a key sequence
cannot be transformed to a disk file
can only be accessed serially
None of these
are meant for backup

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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
running the system with line data by the actual user
testing changes made in an existing or a new program

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