What are XML schemas how are they better than DTDs?

Related questions

1. Can XML attributes have spaces?
2. What is XML parser in Java?
3. What is XML encoding?
4. What is an XML message?
5. What are the two types of XML parsers?
6. What is the point of XML?
7. What are the XML elements?
8. What is XML declaration?
9. What is <? In XML?
10. What can I use XML for?

Tags

1. #powerful
2. #define
3. #provide
4. #schemas
5. #these
6. #limitations
7. #means
8. #structure
9. #wider
10. #types
11. #ranging
12. #cdata
13. #documents
14. #basic
15. #pcdata
16. #which
17. #themselves
18. #document