Web services are the basis of distributed computing across the Internet. A Web service consumer locates a Web service and invokes the operations it provides. The Web service provider (the application implementing the Web service) can be on the same Java virtual machine as the one using it, or it can be thousands of miles away. Web services use standard Web protocols such as XML, SOAP, and HTTP.
Web Services Articles
Mac OS X includes an easy-to-use C framework for Web services. Learn how to access remote SOAP-based web services that require HTTP Basic or Digest authentication.
You can use the Web Kit to handle an applications online registration. This article shows you how to add the features you need, and provides sample source code for the registation back end.
PHP developers can use NuSOAP to incorporate the XML-based protocol into their applications.
Learn how to use WebObjects 5.2 by following these instructions for building a web service.
Learn how to connect Perl and AppleScript with SOAP to create web services servers and clients.