The following methods are to be published as Web services to be invoked via SOAP messages and validated with a schema： 
public void myMethod（int x， float y）； 
public void myMethod（int x）； 
public void someOtherMethod（int x， float y）； 
Which WSDL style should be used？（）

A. They are implemented using Java and XML
B. They support a client-server programming model
C. They are used to create tightly coupled applications
D. They are implemented using standardized technologies

A. To integrate legacy systems
B. To propagate security context
C. To expose fine grained operations
D. To use with process choreography
E. For B2B （business to business） applications

A. Expanding the reach of your company information.
B. Providing transactional services such as credit card payment processing.
C. Making existing services available to a business process to orchestrate services.
D. Enabling interoperability between heterogeneous services to create time-critical solutions.