VAL meaning in Computing ?

What is Validation mean?

Validation may refer to:

Data validation, in computer science, ensuring that data inserted into an application satisfies defined formats and other input criteriaForecast verification, validating and verifying prognostic output from a numerical modelRegression validation, in statistics, determining whether the outputs of a regression model are adequateSocial validation, compliance in a social activity to fit in and be part of the majorityStatistical model validation, determining whether the outputs of a statistical model are acceptableValidation (drug manufacture), documenting that a process or system meets its predetermined specifications and quality attributesValidation (gang membership), a formal process for designating a criminal as a member of a gangValidation of foreign studies and degrees, processes for transferring educational credentials between countriesValidation therapy, a therapy developed by Naomi Feil for older people with cognitive impairments and dementiaVerification and validation (software), checking that software meets specifications and fulfills its intended purposeVerification and validation, in engineering, confirming that a product or service meets the needs of its usersXML validation, the process of checking a document written in XML to confirm that it both is "well-formed" and follows a defined structure reference