This is pretty much spot-on - In the WSDL, you can define complex argument types which may be composed by any number of sub-elements. For example, from a Perl web service that I wrote which employed WSDL: 
<xsd:complexType name="queryElement">
  <xsd:sequence>
    <xsd:element maxOccurs="1" minOccurs="1" name="address" type="xsd:
+string"/>
    <xsd:element maxOccurs="1" minOccurs="1" name="category" type="xsd
+:integer"/>
    <xsd:element maxOccurs="1" minOccurs="1" name="id" type="xsd:strin
+g"/>
    <xsd:element maxOccurs="1" minOccurs="1" name="request" type="xsd:
+string"/>
    <xsd:element maxOccurs="1" minOccurs="1" name="time" type="xsd:int
+eger"/>
  </xsd:sequence>
</xsd:complexType>

[download]

 

perl -le "print unpack'N', pack'B32', '00000000000000000000001000000000'"

In reply to Re^2: Describing hashes in WSDL? by rob_au
in thread Describing hashes in WSDL? by suaveant

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