SOAP version 1.2 in a nutshell
  - SOAP message:
    
      - Envelope: XML document
- Composed of a header and a body
         
  
 
 
- Processing model
- Sent from a sender to a receiver, possibly via intermediaries
- Headers:
    
      - Can be addressed to certain intermediaries
- Can be marked as mandatory
 
- Can be transfered from one node to another any underlying protocol
    (e.g. HTTP)