Introduction
Web Services are self-contained, modular, distributed
dynamic applications that can be described, published, located,
or invoked over the network to create products, processes,
and supply chains. They can be local, distributed, or Web-based.
Web services are built on top of open stanards such as TCP/IP,
HTTP, Java, HTML, and XML. Web services use new standard technologies
such as SOAP(Simple Object Access Protocol) for messaging and
UDDI(Universal Description, Discovery and Integration) and
WSDL(Web Service Description Language) for publishing.