Semi Structured Data

data that might not be neatly Structured Data

• sparse matrix (lots of potential attributes, most instances have values for only a small number of them)
• often want to add even more attribute types
• maybe inconsistent schema - data from various uncontrolled sources
  • Semantic Web
• Document Oriented

Structured Wiki

Triple Store?

Data Store

Kragen Sitaker on variations: Wiki, RDF, Ask Sam, Lotus Agenda (OSAF), XML...