Example

<?xml version="1.0"?>
<definitions name="StockQuote"
             targetNamespace="http://example.com/stockquote.wsdl"
             xmlns:tns="http://example.com/stockquote.wsdl"
  xmlns:xsd="http://www.w3.org/2000/10/XMLSchema"
  xmlns:xsda="http://example.com/stockquote/schema"
  xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/"
  xmlns:soapenc="http://schemas.xmlsoap.org/soap/encoding/"
  xmlns="http://schemas.xmlsoap.org/wsdl/">

  <types>
    <schema targetNamespace="http://example.com/stockquote/schema"
            xmlns="http://www.w3.org/2000/10/XMLSchema">
      <complexType name="TimePeriod">
        <all>
          <element name="startTime" type="xsd:timeInstant"/>
          <element name="endTime" type="xsd:timeInstant"/>
        </all>
      </complexType>
      <complexType name="ArrayOfFloat">
        <complexContent>
          <restriction base="soapenc:Array">
            <attribute ref="soapenc:arrayType" wsdl:arrayType="xsd:float[]"/>
          </restriction>
        </complexContent>
      </complexType>
    </schema>
  </types>

  <message name="GetTradePricesInput">
    <part name="tickerSymbol" element="xsd:string"/>
    <part name="timePeriod" element="xsda:TimePeriod"/>
  </message>

  <message name="GetTradePricesOutput">
    <part name="result" type="xsda:ArrayOfFloat"/>
    <part name="frequency" type="xsd:float"/>
  </message>

  <portType name="StockQuotePortType">
    <operation name="GetLastTradePrice" parameterOrder="tickerSymbol timePeriod frequency">
      <input message="tns:GetTradePricesInput"/>
      <output message="tns:GetTradePricesOutput"/>
    </operation>
  </portType>

  <binding name="StockQuoteSoapBinding" type="tns:StockQuotePortType">
    <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
      <operation name="GetTradePrices">
        <soap:operation soapAction="http://example.com/GetTradePrices"/>
          <input>
            <soap:body use="encoded" namespace="http://example.com/stockquote"
              encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
          </input>
          <output>
            <soap:body use="encoded" namespace="http://example.com/stockquote"
              encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"/>
          </output>
      </operation>
  </binding>

  <service name="StockQuoteService">
    <documentation>My first service</documentation>
    <port name="StockQuotePort" binding="tns:StockQuoteBinding">
      <soap:address location="http://example.com/stockquote"/>
    </port>
  </service>
</definitions>