Entry

What is a web service

Jan 3rd, 2006 00:05
Krishnan L.N,

Hello friends,
Let us look what is a web service in this aricle, and ill explain u 
how to create and consume web sevices in the next article.
Web services are Web-based enterprise applications that use open, XML-
based standards and transport protocols to exchange data with calling 
clients.

Web Services are a very general model for building applications and 
can be implemented for any operation system that supports 
communication over the Internet. Web Services use the best of 
component-based development and the Web. Component-base object models 
like Distributed Component Object Model (DCOM), Remote Method 
Invocation (RMI), and Internet Inter-Orb Protocol (IIOP) have been 
around for some time. Unfortunately all these models depend on an 
object-model-specific protocol. Web Services extend these models a bit 
further to communicate with the Simple Object Access Protocol (SOAP) 
and Extensible Markup Language (XML) to eradicate the object-model-
specific protocol barrier.

Web Services basically uses Hypertext Transfer Protocol (HTTP) and 
SOAP to make business data available on the Web. It exposes the 
business objects (COM objects, Java Beans, etc.) to SOAP calls over 
HTTP and executes remote function calls. The Web Service consumers are 
able to invoke method calls on remote objects by using SOAP and HTTP 
over the Web. 

Krishnan.L.N
krishnan.srikanth@gmail.com
Moderator of .NET Strategies(Google group)