The standardised format, making it easier for them to process large numbers of applications. Questions seeking information that not normally included in CVs. The declaration for you to sign indicating that the information provided is true and correct and acknowledging that 'willful falsification may result in the refusal or termination of employment'. However, the number of basic errors made is suprising. Photocopy the form.
Mistakes are inevitable.
Read the form thoroughly. Prepare a rough draft. Make necessary amendments. Check that all extra sheets are properly cross referenced. Make a copy for your records.