How to Call a Web Service

The procedure you need to use to call a web service depends upon two things:

• Whether you are using a contract first or contract last approach to developing the service call. For more information, see Service Development - Contract First or Contract Last.
• Whether you need to call the service on a virtualization binding or on a SOAP binding. For more information, see Service Bindings and WSDLs.

Use the following table to choose the correct procedure to follow.

Service Development	Service Binding	Procedure
Contract first	Virtualization	For more information, see Calling a Service on a Virtualization Binding (Contract First).
	SOAP	For more information, see Calling a Service on a SOAP Binding (Contract First).
Contract last	Virtualization	For more information, see Calling a Service on a Virtualization Binding (Contract Last).
	SOAP	For more information, see Calling a Service on a SOAP Binding (Contract Last).