System Analysis and Design
On-line data entry is most suitable in the case of

updating payroll master
entering monthly journal entries
Processing payment of cheque in a bank
None of these
All of these

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System Analysis and Design
Unit testing is

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

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