DTD to Schema

Hi,

I have designed an XML file, which has the following DTD. I am more inclined to make a Schema for the XML file, but are having problems designing a Schema file for my XML file.

Can anybody help me make a Schema, if I provide you the DTD file i have constructed.

Thanks,
Amit


DTD FILE for my XML FILE


<?xml encoding="UTF-8"?>
<!ELEMENT project (feature)+>

<!ELEMENT feature (corba+)>
<!ATTLIST feature name ID #REQUIRED>
<!ATTLIST feature depends IDREF #REQUIRED>

<!ELEMENT corba (description+)>
<!ATTLIST corba interface ID #REQUIRED>
<!ATTLIST corba type CDATA #REQUIRED>
<!ATTLIST corba contains CDATA #REQUIRED>

<!ELEMENT description (#PCDATA)>


P.S.:- I am also attaching my XML File.

<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" elementFormDefault="qualified">
<xs:element name="corba">
<xs:complexType>
<xs:sequence>
<xs:element ref="description" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="interface" type="xs:ID" use="required"/>
<xs:attribute name="type" type="xs:string" use="required"/>
<xs:attribute name="contains" type="xs:string" use="required"/>
</xs:complexType>
</xs:element>
<xs:element name="description" type="xs:string"/>
<xs:element name="feature">
<xs:complexType>
<xs:sequence>
<xs:element ref="corba" maxOccurs="unbounded"/>
</xs:sequence>
<xs:attribute name="name" type="xs:ID" use="required"/>
<xs:attribute name="depends" type="xs:IDREF" use="required"/>
</xs:complexType>
</xs:element>
<xs:element name="project">
<xs:complexType>
<xs:sequence maxOccurs="unbounded">
<xs:element ref="feature"/>
</xs:sequence>
</xs:complexType>
</xs:element>
</xs:schema>