Bruce Silver's opinion for the usage of the term "workflow":
So… is workflow “back”? In one way I think it is, with the growing recognition among the orchestration-style vendors that the action today in the BPM market is focused around human work, not application integration. I think that’s what motivated BEA-Fuego, why IBM and SAP are now behind BPEL4People (when they could have done human tasks in BPEL from the start), and why Oracle is putting so much into its human workflow capabilities. So, yeah, workflow is back. But just don’t call it that.