A detective control is used to check if correct numbers are keyed in
A detective control is used to check if correct numbers are keyed in check digit.
Detective control is an accounting term that refers to a type of internal control intended to find problems within a company's processes. Detective control may be employed in accordance with many different goals, such as quality control, fraud prevention and legal compliance.
A check digit, also known as a checksum character, is the number located on the far right side of a bar code. The purpose of a check digit is to verify that the information on the barcode has been entered correctly.