Hi Actuarial Trainee AMPLE DIRECT FACTORS, SOUNDER TRACTORS, SYSTEM T etc from CA1 may be useful, (see the CA1 forum for a pdf of acronyms there, though nowhere near all are relevant to SA4) as may be DR FLOSS etc from ST4. But just like I said last week on another thread, I think worth repeating: SA4 is an applications subject ... memorising lists will not be sufficient to pass SA4, you need to use what you know and tailor to the specifics of the question. Best wishes Stuart Stuart Underwood ActEd Tutor