Parameter validation

In computer software, the term parameter validation^[1][2] is the automated processing, in a module, to validate the spelling or accuracy of parameters passed to that module. The term has been in common use for over 30 years.^[1] Specific best practices have been developed, for decades, to improve the handling of such parameters.^[1][2][3]

Parameter validation can be used to defend against cross-site scripting attacks.^[4]

See also

• Data validation
• Strong typing
• Error handling
• Sanity check