Section 4.3
The role element defines an optional processType attribute, which 
identifies the process type a participant implements. The behavior 
element defines an optional interface attribute, which identifies a WSDL 
interface type the process exhibits. This seems somewhat confusing as 
the processType is associated with the role
not the participant and maps to the package correct? It appears that the 
processType, role and behavior element (in the context of the 
constraints of WSDL) are related to a role not the participant. Please 
clarify.