Steps:

Designing a Service Contract

 

 

Implementing a WCF Service

• What instancing mode will be used?
• What concurrency mode will be used?
• Are transactions supported for this service type?
• Should the service join a particular synchronization context?

 InstanceContextMode =>The default is PerSession which is typically not the desired setting.

 

 

Hosting a WCF Service

• How many endpoints will be exposed for the service type? What protocols will be supported?
• Will a metadata exchange endpoint be provided?
• Which service behaviors and endpoint behaviors will be configured?
• What features will be configured programmatically?
• What features will be configured declaratively?
• Will a custom  and  be useful to encapsulate common initialization features?

 

Generating Proxies

 

• How will collections and arrays be handled?
• Is a consistent object model desired to match the service implementation?
• How will exceptions and faulted channels be managed?
• Are there multithreading considerations?
• Is UI responsiveness a concern?