Programs can perform validation and verification checks when data is entered.

Mark scheme

Marking points from the official mark scheme (May/June 2020). The mark or mark type is shown in brackets.

1. [4] One mark for each correct validation check (max two): Range, Length, Type, Check Digit
2. One mark for each correct related purpose (max two) e.g. To make sure the data entered falls within a specific set of values, To make sure the data entered is no longer than specified, To make sure the data entered follows rules related to whether it is numbers of letters, To make sure an identification code entered is genuine or possible
3. [1] One mark for correct verification check (max one): Double (data) entry, Visual check
4. [2] Any two correct statements (max two) e.g. Validation checks if the data entered is possible/it cannot check if data has been entered correctly. Verification checks if the data entered matches the data submitted for entry/ it does not check if data matches set criteria.