Question
A tax calculation program maintains several hundred tax rates. The BEST control to ensure that tax rates entered into the program are accurate is:

A. an independent review of the transaction listing.
B. a programmed edit check to prevent entry of invalid data.
C. programmed reasonableness checks with 20 percent data entry range.
D. a visual verification of data entered by the processing department.
Answers
Answer: A

Tax rates represent critical data that will be used in numerous calculations and should be independently verified by someone other than the entry person before they are used in processing. Choices B and C are programmed controls that are useful for preventing gross errors, that is, errors such as an added zero or alpha instead of a numeric. A tax table must be 100 percent accurate, not just readable. Choice D will allow the data entry person to check input accuracy, but it is not sufficient.   Your Comment




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