validity checking


Also found in: Dictionary, Thesaurus, Medical, Legal.

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 ?
Masking and validity checking are standard features of microcomputer database software, and buyers should expect no less from an RIS.
Many organizations are switching to Windows Server 2008 to benefit from the advanced algorithms in Cryptography New Generation (CNG), real-time certificate validity checking, and better manageability.
Database administrators use several validity checking techniques against false positives, including a requirement that multiple users submit a possible spam message before the database adds a signature.