have a wsdl something like this haven't enlcosed them in tags as text format here is not valid xml version="1.0" definitions targetNamespace="http://abc.com/namespace/wsif/samples/abc" xmlns:tns="http://abc.com/namespace/wsif/samples/abc" xmlns:typens="urn:xml-soap-address-demo" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns="http://schemas.xmlsoap.org/wsdl/" types xsd:schema xmlns="urn:xml-soap-address-demo" targetNamespace="urn:xml-soap-address-demo" elementFormDefault="qualified" xsd:complexType name="phone" xsd:element name="areaCode" type="xsd:int" xsd:element name="exchange" type="xsd:string" xsd:element name="number" type="xsd:string" xsd:complexType xsd:complexType name="address" xsd:element name="streetNum" type="xsd:int" xsd:element name="streetName" type="xsd:string" xsd:element name="city" type="xsd:string" xsd:element name="state" type="xsd:string" xsd:element name="zip" type="xsd:int xsd:element name="phoneNumber" type="typens:phone" xsd:complexType xsd:schema types ....... definitions My doubt is as elements declared in schema are in default name space is below declartion valid xsd:element name="phoneNumber" type="phone" instead of xsd:element name="phoneNumber" type="typens:phone" Can any one please confirm me ? Can we declare names spaces again (here declared in schema) apart from the one declared in root element here definition element