Just found out all marking for general maths is going to be digitally marked. Meaning all our booklets are going to be scanned on to a computer harddrive, not just the multiple choice. Just a random bit of information i found out. :d
A while ago, multiple choice questions are scanned by scanners that are not digital as such. They put a thick stack of sheets on the scanner tray. These scanners look at the sheets and locate on the precise locations "dark" and "white" blobs. They produce a text file telling the question number and the A,B,C,D, ... Then operators have to manually sweep eyes over an entire page of text to see if the page looks kind of right or wrong. if it looks bad, the page must be found and rescaned manually.
Obviously, now they have models that will do both kind of outputs. Capture and produce the answers for multiple choice in text format, and store the digital images of the pages for archive purpose. Then the digital images are stored into a database so that teachers can mark the portion that are not multiple choice.
It does not mean the non-multiple choice part will be marked "digitally". It is still hand-marked (on the computer screen) and saved into a database to be consolidated with the multiple choice part. Multiple choice question format really save money but are much easier for students to get higher marks.