XPath 2.0 Data Model
- Logical, declarative
specification of XML content
- What is accessible,
not how to access it
- Foundation of all
XPath/XSLT/XQuery operators
- Preserves XML-Schema
type information
- Models PCDATA &
atomic data
- May ignore certain
information
- Insignificant white
space, comments, processing instructions
- Expands entity
references, CDATA sections
- Minimal interface necessary
for query operators
- May be implemented by
DOM, native XML storage system, non-native DBMS, ?
