Traditional mechanisms for web service discovery such as
UDDI and ebXML are not suitable for heterogeneous and
decentralized networks. A method was proposed by F.
Johnsen, T. Hafsoe, A. Eggen, C. Griwodz and P. Halvorsen
[13] for web services discovery in such networks. Different
networks use different protocols. Service discovery gateways
are used so that the different networks can continue to use
different protocols. Interoperability is ensured by using
service discovery gateways that can translate between
different service discovery mechanisms. This mechanism is
called as Service Advertisements in MANETs (SAM).