This document discusses the evolution of services in .NET from ASMX to WCF. It provides an overview of key WCF concepts including the WCF end point, address, binding, and contract. The end point defines where the service resides on the network. The address specifies the network location. The binding defines the communication options like transport and encoding. The contract specifies what the service communicates by defining operations, message patterns, and behaviors.

1. Naresh
Information
Technologies
Nagaraju Bende
MCPD.NET Sr Consultant,Trainer
http://nbende.wordpress.com

2. Agenda – Session 2
Evolution of SOA in .NET
WCF for Services Development
WCF Programming Basics -

3. WCF Hosting
.NET support for WCF Service

4. SOA

5. Evolution of Services in .NET
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11. Next generation of ASMX is WCF (2)

12. ASMX .NET
Remoting
Extensibility
Location
transparency

13. Interop
with other
platforms
Attribute-
Based
Programming
Enterprise
Services
WS-*
Protocol
Support
WSE
Message-
Oriented
Programming
System.Messaging

14. WCF End Point

15. WCF Service Content

16. EndPoint

17. Address
• A network address where the EndPoint
resides
• Examples
– http://silverkey.com/services/demoday.svc
– net.tcp://192.168.1.200:3000/service1
– net.msmq://myserver/private/testQueue

18. Binding
• Specifies how the EndPoint communicates
with the world
• Defines things like
– Transport (eg. HTTP, TCP )
– Encoding (Text, Binary, MTOM )
– Security Options (SSL, Message security)

19. • Examples
– BasicHttpBinding, NetTcpBinding,
NetMsmqBinding, NetNamedPipesBinding … etc

20. Contract
• Specifies what the EndPoint communicates
• Defines things like
– Message Exchange Patterns (one-way, duplex
…)
– Service Operations
– Behaviors (Exchange Meta-Data, Impersonation,
Authorization … etc)