WCF is a platform for building distributed businesses and deploying services among various endpoints in Windows.
WCF was initially called “Indigo” and we can build service-oriented applications and provide interoperability.
WCF or Windows Communication Foundation is a programming model to create service oriented applications.
It is used to create and deploy the service that is accessible to lots of different clients.
It provides an environment where you can create a service which can be accessible to Windows clients as well as Linux clients or any others.
It provides more features compared to web services.
WCF is a Microsoft technology to create service oriented application.
Before the WCF, the Web Service was used to create services but that type of service is only accessible to Windows client hosted on HTTP protocol.
But WCF services are accessible with different protocols like http, tcp, msmq, etc. A few sample scenarios include:

WCF

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