Your WSDL and schema files can be located in many places and can share the same namespace. When you specify a WSDL or schema location, Process Developer adds the namespace declaration to the BPEL process and ensures that the namespace points to the correct reference.
Process Developer takes care of WSDL location and namespace declarations for you when you add a WSDL file to Project Explorer and then create a Receive or Invoke activity by starting with an existing operation or a new operation. For basic information on using the convenience of interfaces, see
Interfaces, Service References, and Local WSDL
Creating an Activity by Starting with a WSDL Interface