2.2.6.2 Is Initiating WSDL Extension

 <xs:schema 
            attributeFormDefault="unqualified" 
            elementFormDefault="qualified" 
            targetNamespace="http://schemas.microsoft.com/ws/2005/12/wsdl/contract/"
            xmlns:xs="http://www.w3.org/2001/XMLSchema">
   <xs:attribute name="isInitiating" type="xs:boolean" />
 </xs:schema>

The following describes the content model of the isInitiating attribute.

/msc:isInitiating: A WSDL operation having an Is Initiating WSDL extension with a true value indicates that this operation is an initiating operation.