Monday, June 20, 2011

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.
FeaturesWeb ServiceWCF
HostingIt can be hosted in IISIt 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
OperationOne-way, Request- Response are the different operations supported in web serviceOne-Way, Request-Response, Duplex are different type of operations supported in WCF
XMLSystem.Xml.serialization name space is used for serializationSystem.Runtime.Serialization namespace is used for serialization
EncodingXML 1.0, MTOM(Message Transmission Optimization Mechanism), DIME, CustomXML 1.0, MTOM, Binary, Custom
TransportsCan be accessed through HTTP, TCP, CustomCan be accessed through HTTP, TCP, Named pipes, MSMQ,P2P, Custom
ProtocolsSecuritySecurity, Reliable messaging, Transactions

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