Saturday, October 1, 2011

Difference between WCF and Web service


Difference between WCF and Web service

Web service is a part of WCF. WCF offers much more flexibility and portability to develop a service when comparing to web service. Still we are having more advantages over Web service, following table provides detailed difference between them.
Features
Web Service
WCF
Hosting
It can be hosted in IIS
It can be hosted in IIS, windows activation service, Self-hosting, Windows service
Programming
[WebService] attribute has to be added to the class
[ServiceContraact] attribute has to be added to the class
Model
[WebMethod] attribute represents the method exposed to client
[OperationContract] attribute represents the method exposed to client
Operation
One-way, Request- Response are the different operations supported in web service
One-Way, Request-Response, Duplex are different type of operations supported in WCF
XML
System.Xml.serialization name space is used for serialization
System.Runtime.Serialization namespace is used for serialization
Encoding
XML 1.0, MTOM(Message Transmission Optimization Mechanism), DIME, Custom
XML 1.0, MTOM, Binary, Custom
Transports
Can be accessed through HTTP, TCP, Custom
Can be accessed through HTTP, TCP, Named pipes, MSMQ,P2P, Custom
Protocols
Security
Security, Reliable messaging, Transactions

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