Validation and Verification: Theory

Specification Points
Specification Reference Specification Point
3.1.1.j describe and give examples of the following validation methods: range, type, check digit, length, lookup, picture/format and presence, and their purpose, indicating that these methods can only ensure reasonable data is input to a system and that there is no certainty of accuracy;
3.1.1.k describe and give examples of the following verification methods: double entry with automatic comparison and proof reading, and understand that verification does not ensure the data is correct but that it is entered correctly and reduces errors


Mini Website

This mini website covers the specification points above.

Students should read through the information and make their own notes.

There are some suggestions for tasks in the 'Lesson Ideas' section which could be used to accompany the website.

validation and verification