Recommendation ITU-T Q.818 defines a set of services required to support service-oriented web services-based interfaces and along with Recommendation ITU-T X.782 composes a framework for web services-based network management interfaces. It specifies protocol requirements, how some well‑known web services should be used in network management interfaces and defines some network management-specific support services. The WSDL interface definitions for the network management-specific support services are also provided.