ZapThink’s Jason Bloomberg provides good food for thought on the SOA-BPM discussion, saying that SOA and BPM are structurally the same. They may, in fact, be an example of “process isomorphism.”
Read the entire post at http://www.ebizq.net/blogs/soainaction/2011/01/the_quiet_synergy_between_soa.php
(1) Usually A composition of business services doesn’t have a state and (2) in a composition we are not talking about human intervention. To me these two elements are the core things that make SOA and BPM different. Not because the flow diagram could look similar they are the same.
Every task in a process is not necessarily a service.