SDD is Software Design and Development, deals with programming which is the one you want.
ITM is multimedia, dealing with editing images and videos etc. (I did some web dev in mine, but the focus is on media really). So not what you want.
I don't know the difference between IPT and SDD, but here is a thread discussing it: WHAT SHOULD I CHOOSE? Software or IPT?
There are more with a google search, but ultimately I think SDD is right for you and useful.