clipped from: www.xml.com Work on XML protocols -- the use of XML for messaging and remote procedure calls -- approaches the Semantic Web from the other end of the spectrum. Avoiding grand schemes for the classification of everything, it is focused on standardizing XML-based interactions between computers. A key component of XML protocol technology is the description and discovery of web services available via XML protocols such as SOAP, since systems require the ability to conduct electronic transactions with other systems of which they have no prior knowledge.