Data validation: Difference between revisions

Revision as of 17:33, 8 November 2006

Revision as of 11:26, 15 November 2006

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*'''Check digits'''

Used for numerical data. An extra digit is added to a number which is calculated from the digits. The computer checks this calculationcahyjjyjythfthlculation when data are entered, e.g., The [[ISBN]] for a book. The last digit is a check digit calculated using a [[modulus]] 11 method.

*'''Batch totals'''