W3C XML Schema Data Types
- Both built-in and derived types
- User can extend and derive types
- A datatype is a triple
- a set of values
- a set of lexical representations
- a set of facets (properties)
- fundamental (ordered, bounded, cardinality, numeric, equal)
- constraining (length, maxlength, pattern, totalDigits, fractionDigits,
et al.)
