What standards define a web service?
Web services were enabled by the introduction and the broad adoption of of three related World Wide Web Consortium (W3C) standards: XML, SOAP, and WSDL; (pronounced ‘Wisdle’). ‘Web Service’ can be a confusing term because it is so generic. After all many people and companies provide their ‘services’ over the ‘web’. But only those ‘functions’ that support the three standards above are true ‘web services’.