| Subject | English | Welsh |
| comp., MS | card validation code | cod dilysu cerdyn (A code that credit card companies use to authorize credit card charges. For example, American Express uses a four-digit number on the front of the credit card, and Visa, MasterCard, and Discover use a three-digit number on the back) |
| comp., MS | data validation | dilysu data (The process of ensuring that data meets specified criteria) |
| comp., MS | Office File Validation | Dilysu Ffeiliau Office (A security feature that validates files before allowing them to be loaded by the application, in order to protect against file format vulnerabilities) |
| comp., MS | preliminary data validation | dilysu data cychwynnol (The process of validating data before it is processed. This validation helps detect and exclude some errors from the intended process, which might be the import or migration of users using a CSV file, for example) |
| comp., MS | schema validation | gwirio sgema (The verification that the XML of a procedure conforms to the provisioning schema of Microsoft Provisioning Framework (MPF). This schema contains the generic XML elements and attributes available to invoke specific provisioning functionality) |
| comp., MS | shape-level validation | dilysu lefel siâp (The act of checking a visual workflow to ensure that the shapes and connections are valid) |
| comp., MS | validation formula | fformiwla dilysu (Checks the data in a field as it is entered. It sets limits or conditions on what can be entered) |
| comp., MS | validation rule | rheol dilysu (A property that defines valid input values for a field or record in a table, or a control on a form) |