validity checking


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validity checking

Routines in a data entry program that test the input for correct and reasonable conditions, such as account numbers falling within a range, numeric data being all digits, dates having a valid month, day and year, etc. Checking the spelling of proper names, if possible, can also be part of validity checking. See validate for a comparison of "validate" and "verify."

Errors Can Be Critical


It may seem like a dull part of the IT world, but data entry validation can be a very critical issue when there is insufficient validity checking of the input. In late 2001, a Japanese stockbroker erroneously placed a sell order for 610,000 shares of stock at 16 yen, when it should have been for 16 shares at 610,000 yen. Even though the error was caught two minutes after the order was placed, the broker's liability was estimated to be up to USD $100 million.
References in periodicals archive ?
Trigger validity checking at any time such as upon display, before save, or when setting properties.
Services which ARCANVS provides to the electronic commerce community include Key Pair identity verification, Certificate issuance, Certificate validity checking, corporate and enterprise Certificate management and Certification Authority Repository management.
In addition to providing third-party Certification Authority services, ARCANVS provides services such as Key Pair identity verification, Certificate issuance, Certificate validity checking, corporate and enterprise Certificate management and Certification Authority Repository management.