We have covered the basics of WSDL in this tutorial. The next step is to learn SOAP, UDDI, and Web Services.
Web Services
Web services are open standard (XML, SOAP, HTTP, etc.) Web applications that interact with other Web applications for the purpose of exchanging data.
To learn more about Web Services, visit Web Services Tutorial.
UDDI
UDDI is an XML-based standard for describing, publishing, and finding Web services.
To learn more about UDDI, visit UDDI Tutorial.
SOAP
SOAP is a simple XML-based protocol that allows applications to exchange information over HTTP.
To learn more about SOAP, visit SOAP Tutorial.