am i cracy?

I there,
 
I don't have any idea?!?!
 
I have the following XSD files:
 
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema
targetNamespace="http://www.iese.fhg.de/Publication/ProjThesis"
xmlns:iese.Publication="http://www.iese.fhg.de/Publication"
xmlns:iese.ProjThesis="http://www.iese.fhg.de/Publication/ProjThesis"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified" attributeFormDefault="unqualified">
       <xs:import namespace="http://www.iese.fhg.de/Publication"
schemaLocation="Publication.xsd"/>
       <xs:element name="ProjThesis"
type="iese.Publication:Publication"/>
</xs:schema>
 
 
<?xml version="1.0" encoding="UTF-8"?>
<xs:schema targetNamespace="http://www.iese.fhg.de/Publication"
xmlns:iese.Publication="http://www.iese.fhg.de/Publication"
xmlns:xs="http://www.w3.org/2001/XMLSchema"
elementFormDefault="qualified" attributeFormDefault="unqualified">
       <xs:element name="Publication"
type="iese.Publication:Publication"/>
       <xs:complexType name="Publication">
             <xs:sequence>
                    <xs:element name="title" type="xs:string"/>
                    <xs:element name="date" type="xs:date"/>
                    <xs:element name="abstract" type="xs:string"/>
                    <xs:element name="rating" type="xs:string"/>
                    <xs:element name="location" type="xs:string"/>
                    <xs:element name="confidentiality"
type="xs:string"/>
                    <xs:element name="author" maxOccurs="unbounded">
                           <xs:complexType>
                                 <xs:anyAttribute
namespace="http://www.w3.org/1999/xlink"/>
                           </xs:complexType>
                    </xs:element>
             </xs:sequence>
       </xs:complexType>
</xs:schema>
 
 
And a corresponding XML FILE:
 
<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="../../../XSL/publication.xsl"?>
<ProjThesis
xmlns.iese.ProjThesis="http://www.iese.fhg.de/Publication/ProjThesis"
xmlns:iese.Publication="http://www.iese.fhg.de/Publication"
xmlns:xlink="http://www.w3.org/1999/xlink"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.iese.fhg.de ../../../XSD/ProjThesis.xsd">
       <iese.Publication:title>Wavelet
Kompression</iese.Publication:title>
       <iese.Publication:date>2004-01-06</iese.Publication:date>
 
<iese.Publication:abstract>abstract...</iese.Publication:abstract>
       <iese.Publication:rating>top</iese.Publication:rating>
 
<iese.Publication:location>http://www.iese.fhg.de</iese.Publication:loca
tion>
       <iese.Publication:confidentiality>top
secret</iese.Publication:confidentiality>
       <iese.Publication:author xlink:type="simple" xlink:show="replace"
xlink:href="../../../XML/Person/person_NikolasNehmer.xml"/>
</ProjThesis>
 
 
Why is this file valid? I don't declare any default NS so in opinion I
need to prefix the top level element ProjThesis, too. But if I do so my
Parser creates a error message?! Why is this valid? My Problem is that I
need a uniform design of my xml document, so every element should have
it's prefix to demonstrate it's origin.
 
Does anyone has any suggestions?
 
Best regards,
Nick