Web services are web application components.
Web services can be published, found, and used on the Web.
WSDL
* WSDL stands for Web Services Description Language
* WSDL is an XML-based language for describing Web services.
* WSDL is a W3C recommendation
SOAP
* SOAP stands for Simple Object Access Protocol
* SOAP is an XML based protocol for accessing Web Services.
* SOAP is based on XML
* SOAP is a W3C recommendation
RDF
* RDF stands for Resource Description Framework
* RDF is a framework for describing resources on the web
* RDF is written in XML
* RDF is a W3C Recommendation
RSS
* RSS stands for Really Simple Syndication
* RSS allows you to syndicate your site content
* RSS defines an easy way to share and view headlines and content
* RSS files can be automatically updated
* RSS allows personalized views for different sites
* RSS is written in XML
