title: How to choose between DTD and XSD
body: <p>I want to use either a DTD or an XSD to describe my XML document. I've read that XSDs are better than DTDs since they support namespaces and data types, and that DTDs are older.</p>
  
  <p>Does this mean that I should only use XSDs for all future needs and totally ignore DTD as an option? Should I even bother learning the structure of DTDs?</p>
  
  <p>What factors should I consider when choosing between XSD and DTD?</p>