3.1 Description of SOAP protocol
SOAP 1.1 (Simple Object Access Protocol) is an XML-based protocol for data exchange in distributed environments. The structure of SOAP message is shown on Figure 12. Message parts with steady line are obligatory (envelope, body). Header marked with a dashed line is not defined as obligatory in SOAP protocol, but in X-Road messages, header is obligatory.
Figure 12 Structure of SOAP message and