[WSDL 1.1 Term] Operation [Description] Defines the SOAP actions and the way the message is encoded, for example, "literal." An operation is like a method or function call in a traditional programming language. [WSDL 2.0 Term] 
Operation
S e r v i c e
E n d p o i n t
B i n d i n g
I n t e r f a c e
O p e r a t i o n
n / a
T y p e s