Personally you would study as you would study a subject with an old Study Design!
Just because the study design is new doesn't make the subject any different or harder or anything.
Like Laseredd, I would personally go through the Study Design word for word, which is what I did with Software Development last year
With each point in the Study Design I would go to the textbook and find out what it says about that point, and then do some online research
Also, with IT subjects in general (both ITA and SD) you've got to remember that there's only so many questions they can ask you, so essentially there's no point in spamming trial exams (there's no point for any subject, but I can't be bothered arguing with those who believe that spamming trial exams is a substitute for learning maths theory) but what you want to do is basically what Laseredd is suggesting, on the Exam last year I lost marks for fairly stupid things which in retrospect I really did know, but you have to make sure your wording is right, I would personally say avoid paragraphs, and stick to dot points or even just simple sentences, you don't want to sound like a long-wounded book, you want to get to the point and answer the question, if you haven't answered the question, you could write a page and it'd still be wrong!
Also note that the Study Design hasn't changed a great deal so just select questions that are relevant out of the older exam papers! Also, there always are questions that are badly worded, watch out for them!