XML Schema and inheritance

Hello,

I hope that someone can help me. Making XML Schema is new for me. What I
have are two DTD´s that I want to tranform them into a schema. So the first
DTD
describes the MemberData and the second the PortalMemberData which should be
derived from MemberData. So please can someone tell me how the syntax of
this inheritance would be.

Many thanks,

Susi

MemberData:
<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT MemberDataDoc (MemberData)*>
<!ELEMENT MemberData (Name, BDate?, Address)>
<!ATTLIST MemberData
	id ID #REQUIRED
	Gender (female | male) #REQUIRED
>
<!ELEMENT Name (FName, SName, MInitial?, Title?)>
<!ELEMENT BDate (#PCDATA)>
<!-- Date of Birth -->
<!ELEMENT FName (#PCDATA)>
<!ELEMENT SName (#PCDATA)>
<!ELEMENT MInitial (#PCDATA)>
<!ELEMENT Title (#PCDATA)>
<!ELEMENT Address (Street, PCode, City, Country?, EMail?, TelNr?)>
<!ELEMENT Street (#PCDATA)>
<!ELEMENT PCode (#PCDATA)>
<!ELEMENT City (#PCDATA)>
<!ELEMENT Country (#PCDATA)>
<!ELEMENT EMail (#PCDATA)>
<!ELEMENT TelNr (#PCDATA)>

PotalMemberData:
<?xml version="1.0" encoding="UTF-8"?>
<!ELEMENT PortalMemberDataDoc (PortalMemberData)*>
<!ATTLIST PortalMemberData
	MemberId CDATA #REQUIRED
>
<!-- IDREF auf MemberData ID-->
<!ELEMENT PortalMemberData (Fee*, DEntrance, DWithDrawal?, UserID,
Password)>
<!ATTLIST Fee
	FeePaid (Yes | No) "No"
>
<!ELEMENT Fee (Amount, Currency)>
<!ELEMENT Amount (#PCDATA)>
<!ELEMENT Currency (#PCDATA)>
<!ELEMENT DEntrance (#PCDATA)>
<!ELEMENT DWithDrawal (#PCDATA)>
<!ELEMENT UserID (#PCDATA)>
<!ELEMENT Password (#PCDATA)>

Received on Thursday, 3 May 2001 02:59:06 UTC