Xml Database

Technology

MarkLogic

Evolution

• IBM: Hierarchical
• Oracle: Relational
• MarkLogic: “Any Structure”, schema-agnostic, no pre-defined model

how to prevent a mess?

• we need to index the information in order to search information
• use triple store with subject, predicate and object
• use SPARQL to query information
• Ontology: functional definition, linking things together (at OECD: use own ontologies in the Temis catridge)

eXistdb

http://exist-db.org/