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 ?
TrailMaster automates the clinical trial data collection process and allows its customers to manage the data collection process, as well as enables to deploy customized electronic case report forms for onsite clinical data input, which incorporate automated edit checking and deliver data management capabilities.
SALTS has always used up-front edit checking for record length and data content, to ensure files are correct before being submitted.
Annually, thousands of reports are sent to high schools, districts and states; the complex process of starting with millions of student records, selecting only those for the graduating class, edit checking, data analysis, report production, proofing and mailing is accomplished in 4-6 weeks.
The Migrator Wizard also provides the ability to upgrade CRF forms, backend data structures and edit checking rules without the need to take down a system, enabling customers to run concurrent studies across multiple time zones without interruption.
Other enhancements allow budget editing at the activity level, budget edit checking across the entire accounting system, editing of date range activity and options for tracking activity costing commitments.