Authority

• APs often contain references to:

• • Other metadata vocabularies (same standard) – RSLP, eGMS, etc
  • 'Informally imported' elements from different but familiar standards, such as MODS (an XML standard)

• A chicken-and-egg problem: to import this structure, every authority must add their terms before system becomes useful!

• But authorities may not be aware of 'informal imports'!