
28 WebSphere and .Net Interoperability Using Web Services
3.1 Structure of WSDL definitions
Figure 3-1 Structure of a WSDL document
1. WSDL definition
A WSDL definition is an XML document, or a number of documents that can
be imported to compose a complete WSDL definition. The WSDL definition
has a target namespace to identify all its elements.
2. Logical elements
The logical elements describe the information in the Web service. They are:
a. Data types used in messages.
Types are described using schema definitions. SOAP encoding is an
alternative, in which case a type section is unnecessary. The WSDL
standard allows the use of alternative type grammars ...