How to design an XML language that can be used to describe accommodation.

I need to design an XML language that can be used to describe accommodation. This will involve the creation of a DTD and/or Schema together with example XML documents. I need also to create an XSLT file that transforms your XML documents into the XHTML formats. and finally i need to demonstrate your XSLT using both client-side and server-side XSLT processing.

has anyone have any idea how i can go about this matter? please any help would be appreciate it as i desperately need to complete this task soon.

Shaheen

I found the tutorials at w3schools.com quite helpful for starting with XML.

could i have the link please if its possible,
thanks

http://w3schools.com/

@Oralloy
thanks very much for your reply, however i am looking for solution as i havnt got much time left, but ill keep that in mind.