Skip to end of metadata
Go to start of metadata
You are viewing an old version of this page. View the current version. Compare with Current  |   View Page History

Does a search for a term include all narrower terms?


This is defined by FR Implementation: look for a loop at the last node. (When there are 2 diagrams, look at the right one)

  • Place: about: NO; created, located, found, from: YES.
    • I use P89_falls_within, so any object related a sub-place is also related to its super-places.
      So if you search with a super-place, it will find objects related to all its sub-places as well
  • Actor: owner/keeper, influenced, met, about, found: NO; created YES
    • The choice that "found" is not transitive is a bit arbitrary and means you can't search "found by British".
      The other choices I believe are reasonable
    • I use P107i_is_current_or_former_member_of, so you can search "created by Dutch" and will find objects by Rembrandt.
  • Concept: is/has/about (type): YES
    I have added "P127_has_broader_term" to search by Type, so a search with a broader term will return all narrower terms as well
  • made of (material), used technique: NO.
    This choice follows Martin's definitions, but is arbitrary
    • I believe there's no hierarchy in BM Material and BM Technique, but have not checked recently.
      WRONG: both are hierarchical, eg

If you want me to change something, please let me know.



EEU71607 A fabric belt with metal buckle
The query "found at Sofia-city and made of copper-alloy" returns this object from BM search but does not return it in RS search, why?

  • The object is
  • It is found with "found at Sofia-city and made of brass".
  • the object rso:FR45_is_made_of thes:x10411, thes:x10646, thes:x11991
  • thes:x10411 (brass) has skos:broader thes:x10627 (copper alloy). (This last term has altLabel "brass" but scopeNote that explains that it's different from brass).
  • the current definition of FR45_is_made_of doesn't traverse the broader hierarchy.
  • the old definition of FR45_is_made_of doesn't traverse the broader hierarchy either.
  • in fact it has been defined like this since 15 May 2012
  • This came from Martin's definition: TR ICS‐FORTH/TR‐429 (April 2012) on p64 when defining "Thing is made of" does not use "P127 has broader term".
    • I now notice that one p63 when defining "Thing has type" they DO use "P127 has broader term" (so the above is a discrepancy)
  • It has survived supposed inspections by Dominic and Peter Main
  • This page has asked for feedback since Mar 04, 2013

Since the BM Material and Technique thesauri are hierarchical, I think these FRs should be transitive



  • Search for Rembrandt (created) and animal (is/has/about): zero results
  • Search for mammal (a narrower term of animal) and you get results

"P127_has_broader_term" is in the search by Type/Subject, so a search with a broader term will return all narrower terms as well.
The opposite is not true: if you search for Mammal, you're looking only for mammals, and objects tagged with the more general term Animal should not be returned.

Enter labels to add to this page:
Please wait 
Looking for a label? Just start typing.