This document provides an introduction to Windows Communication Foundation (WCF) including: - Key characteristics of WCF such as its service-oriented programming model and interoperability. - The ABCs of WCF - Address defines where a service is located, Binding defines how a service is accessed, and Contract defines what operations and data the service supports. - An overview of WCF architecture including endpoints that clients connect to and contracts that clients and services must comply with.

1. ACTIVE LEARNING ASSIGNMENT
.NET TECHNOLOGY(2160711)
PREPARED BY:
1.140800107067
2. 140800107070

2.  WCF introduction
 Key characteristics of WCF
 ABC of WCF
 Architecture
INCLUDES

3. *
INTRODUCTION

4. Windows Communication
Foundation
Unified framework for
rapidly building
service-oriented
applications

5.  WCF(codename Indigo) is a unified
communication framework for distributed
application.
 It is a new technology introduced by
microsoft in .NET framework for building and
running connected system.
Window communication
foundation

6.  WCF defines a common programming
model and unified API for clients and
services to sends messages between
each other.
 WCF is current and future standard for
distributed .NET application
WCF

7. Key Characteristics of WCF
 Service-oriented programming model
(SOA)
 Interoperability with non-WCF web
services due to use of SOAP messages
 Extensibility

8.  Entry point of service
 WCF client connects to WCF Service via an endpoint.
Syntax:
<service…>
<endpoint address:”” binding:”” contract:”” />
…
</service>
Endpoint

9. ABC of WCF
A : Address(Where)
B :Binding(How)
C : Contract(What)

10. Address(A in ABC)
The WCF address defines where a web service
(endpoint) is accessible. WCF models an address as an
endpoint reference (EPR) as per the WS-Addressing
standard.
Example endpoint address URI:
http://localhost:8000/HSZ-TWSMW/DateTimeService
http: System Protocol
8000: Port Number
localhost: Machine IP address
HSZ-TWSMW/DateTimeService: Path under which
service.

11. Binding(B in ABC)
The binding defines how a web service
endpoint is accessed.
A binding contains the following elements:
Transport Protocol
Message Encoding
Security/Reliability Setting

12. Binding & Binding Elements
Transport
IPCMSMQ
Custom
TCP HTTP
ProtocolEncoders
.NETTX
Custom
Security Reliability
Binding
HTTP TXSecurity ReliabilityText
Text
Binary
Custom

13. Contracts(C in ABC)
WCF interfaces are called “contracts” (both
client and server must comply with the
contract). Contracts describe operations, data
structures and messages.
Types of Contract:
Service Contract
Data Contract
Message Contract
Operation Contract

14. Architecture