In one example, a policy broker engine is provided in communication with a service registry and with {HEAD ~ policy servers} through {TAIL ~ policy adapters} 
In one example , a policy broker engine is provided in communication with a service registry and with { HEAD ~ policy servers } through { TAIL ~ policy adapters }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL