RE: Difference between WCF and Web services

Giganews Newsgroups
Subject: RE: Difference between WCF and Web services
Posted by:  jiew…@online.microsoft.com
Date: Mon, 01 Jun 2009

Hi Ammar,

"Web service" is a concept defined as " a software system designed to
support interoperable machine-to-machine interaction over a network. It has
an interface described in a machine-processable format (specifically WSDL).
Other systems interact with the Web service in a manner prescribed by its
description using SOAP-messages, typically conveyed using HTTP with an XML
serialization in conjunction with other Web-related standards." (W3C Web
Services Glossary:http://www.w3.org/TR/ws-gloss/).

While WCF is a set of Microsoft tools and technologies that developers can
use to develop service oriented systems. It interacts with/as not only web
services, but also other existing Microsoft distributed systems
technologies such as MSMQ and COM+.

For a complete introduction to the WCF, please refer to the following
articles:

What Is Windows Communication Foundation? (MSDN)
http://msdn.microsoft.com/en-us/library/ms731082.aspx

Windows Communication Foundation (Wikipedia)
http://en.wikipedia.org/wiki/Windows_Communication_Foundation

In Visual Studio 2008, there are two ways to add an web service reference,
one is called Service Reference, which utilizes WCF to interact with the
service; the other is called Web Reference, which utilizes legacy
System.Web.Services.Protocols.SoapHttpClientProtocol, the original way to
interact with web services starting from the .NET 1.0 time.

Hope this makes it clear. If you have any further questions, please feel
free to post here.

Best regards,

Jie Wang (jiew…@online.microsoft.com, remove 'online.')

Microsoft Online Community Support

Delighting our customers is our #1 priority. We welcome your comments and
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In response to

Difference between WCF and Web services posted by Ammar S. Mitoori on Sun, 31 May 2009