Yes. Typically there are 3 tiers of graduate program by coursework (certificate, diploma, masters) and 2 tiers of graduate program by research (masters, Ph.D).

Yes. Typically there are 3 tiers of graduate program by coursework (certificate, diploma, masters) and 2 tiers of graduate program by research (masters, Ph.D). Universities may offer none or all of these programs under different names. There is sometimes another tier by coursework called a "diploma for graduates" which differs from a graduate diploma in that it is usually at the undergraduate level, and very occasionally you see a Ph.D by coursework. Stanford also offers professional certificates through SCPD which are entirely distinct from their graduate program being targeted towards the continuing education market.