XQuery 1.0 and 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
- Supports Infoset and PSVI sources
- Models nodes & 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, ?