The problem
- Statement
- this resource (track, picture... etc!) has dc:creator “Don Van Vliet”
- Multiple expressions in XML
- different XML schemas make different choices
- all “good” (and valid)
- human reader of document can interpret (maybe)
- program needs prior “knowledge” of structural conventions in each XML schema
- Not scalable in an “open” environment
- how to manage ever increasing set of conventions
- always encountering unknown schemas