I think of ORM as a class of modeling languages (FORML, FCO-IM, NIAM, among others) much like ER is a class of languages (Barker, IDEF1x, IE, etc.). ORM languages are identified by their ability to model objects playing roles in fact types rather than attributes-entities-relationships.
Infagon supports FCO-IM which is similar to NIAM, the precursor to FORML (Formal Object Role Modeling Language), which is supported by VEA. There are many similarities but a few differences. For example, FCO-IM creates Entity types (which have a different name) by objectifying a unary fact type.
When most people say "ORM" they mean FORML, and I suspect this in the context in which the above quote can be taken.
Scot.