General notions (1/2)

• A WSD is described in terms of components (interface, binding, service, …).
• WSDL uses qname {namespace name, local name} to identify WSD components but we do have a scoping: a interface qname is part of the global scope, while an operation qname is part of its interface scope. (see also Appendix C, WSDL 1.2: Core).
• The WSD components are reusable: you can include and/or import them from an other WSDL document.