SAS STAT product has so many model tools to offer sometime one is confused which covers what
cases and data structure. Below is a summary diagram I took from a training course SAS offers.
Again a picture speaks volume. This diagram is two years old. I believe, 90%, stay the same since.
Some such as GENMOD and GLIMMIX may be considered to move to HP platform. And NLIN and MIXED already have their big data counterpart in SAS HPA's HPNLIN and HPMIXED