Web services is Internet or other IP-based network applications built with four emerging standards: XML, simple
object access protocol (SOAP), Web services description language (WSDL), and universal description discovery
and integration (UDDI). That allows the applications to talk to each other—no human intervention needed. What
Web services is all about is interoperability of applications, be they written in Perl or Java or Windows or whatever.
CRM relevance: Highly relevant.