Port Types

A portType is a named set of abstract operations and the abstract messages involved.
They are equivalent to interfaces.
The name attribute provides a unique name among all port types defined within in the enclosing WSDL document.
An operation is named via the name attribute.
WSDL has four transmission primitives that an endpoint can support:
- One-way. The endpoint receives a message.
- Request-response. The endpoint receives a message, and sends a correlated message.
- Solicit-response. The endpoint sends a message, and receives a correlated message.
- Notification. The endpoint sends a message.