slide 8

The Document Model (“schema”)

Major component of an XML application

• Model for one type / class of information (a “document”)
  (reference book, bank transfer, journal article, credit transaction, drug monograph)
• Set of rules describing how documents of that type can be marked up
• Agreement on a common vocabulary (tag set) for an application
• Written in a formal syntax (a constraint language)

• Examples: DTD, W3C XML Schema, RELAX NG