3.1.4 Message Processing Events and Sequencing Rules

The following table summarizes the list of WSDL operations defined by this specification:

Operation

Description

Hello

Used to announce a service that is joining a network.

Bye

Used to announce a service that is leaving a network.

Probe

Used to find a service on the network, based on service type.

ProbeMatch

Used to respond to a Probe message to indicate that the service matches the requested type.

Resolve

Used to locate a particular target service and retrieve network transport information.

ResolveMatch

Used to return the network transport information for a target service requested using a Resolve message.

The server MUST verify that each received message matches the schema, as specified in [WS-Discovery] Appendix III, and discard malformed messages. Further parsing depends on the message type.

All other messages are discarded without further processing.