DCD: Basic Concepts 1/2
DCDs themselves have descriptive parameters
- Description, (Canonical) Namespace URI
- Open or Closed: whether documents must validate
Elements
- Content Model
- Empty, Any, Data, Elements, or Mixed ; Root flag
- Attribute or AttributeDef declarations
- Default & Fixed element contents
- Groups & Order (Seq or Alt); Occurs
- Required, Optional, OneOrMore, or ZeroOrMore