Questions on "Block" and namespace

I'm a student of Politecnico in Turin. I have written you to ask some 
information:
- When I write an XML document, the URI used in the declaration of a 
  namespace, for example xmlns:book="http://www.somewhere.org/Book, 
  must have some relation with some component defined in the 
  related schemas ?
- The attribute "BLOCK" used in the definitio of some schema's component
  is equivalent to old attribute "EXACT" ?
Thank you for all.

Received on Monday, 1 May 2000 12:28:47 UTC