Processing the data

Scanning, editing and processing

Meeting the challenging targets for Census 2016 will involve the guillotining, scanning, computer reading and checking of 15,000 forms every day over a six month period using 2 guillotines, 3 high-speed scanners and a bespoke computer infrastructure.

The 15,000 forms to be processed each day will be scanned and converted into 360,000 computer images which, with the use of Optical Character Recognition, will be converted into readable data and

then checked and coded by 90 staff with the aid of a specialised computer system.

Ultimately more than 40 million computer images will be generated, one for every page of a Census form. The final data will be summarised and prepared for publication.