slide 28

W3C XML Schema Content Models

• All that DTDs can do
• Occurrences include maxoccurs, minoccurs
• Structural modeling has
  • extensible types
  • local element declarations (context-dependent models)
  • substitution groups (element and attribute)
  • default elements and attributes
• Element wildcards (xs:any traditional bag; all in any order)
• Attribute wildcards (any number of attributes)
• Constrain elements in mixed content
• Arbitrary elements or composite models as keys