The user roles in the role database are available for use by a plurality of {HEAD ~ users} of {TAIL ~ the application} 
The user roles in the role database are available for use by a plurality of { HEAD ~ users } of { TAIL ~ the application }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL