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AGLDWG / gnaf-ont

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Part-whole relationship between StreetLocality and Street? #8

Open dr-shorthair opened 5 years ago

dr-shorthair commented 5 years ago

Is the relationship between a Street and its component StreetLocality segments explicit in the data? Is there a missing relationship in the ontology?

dr-shorthair commented 4 years ago

From #19

dr-shorthair commented 5 days ago Propose making gnaf:StreetLocality the principle class in gnaf-ont - sub-class of geo:Feature and gnaf:GnafEntity. Not quite sure what gnaf:Street does

nicholascar commented 21 hours ago I remember these Street class issues, a couple of years ago now! No answers I’m afraid only I agree with your characterisation of the situation

dr-shorthair commented 20 hours ago My hunch is that you guys wanted a general 'Street' class to aggregate all the sections represented as StreetLocality, but you got a bit tangled up in the sub-classing relationships. Have added some comments for now, so we can come back to it.

Definition: a complete Street that crosses multiple localities.

NOTE: In principle, a Street is composed of several StreetLocality members, however this relationship is not present in the GNAF Ontology. Furthermore, the GNAF product definition does not contain a class for Street, only for StreetLocality. The GNAF Ontology does not therefore correspond to the GNAF product in this area, and should be reviewed and potentially revised to capture the correct alignment. In particular, in the GNAF Ontology geometry is associated with gnaf:StreetLocality, but not with gnaf:Street which means that gnaf:Street as a sub-class of geo:Feature is not Loc-I conformant.

dr-shorthair commented 4 years ago

TODO

  1. Move all the properties of Street to StreetLocality
  2. Remove the axiom StreetLocality sub-class-of Street
  3. Add axioms StreetLocality sub-class-of geo:Feature , gnaf:GnafEntity
  4. reformulate Street as an aggregate of StreetLocality individuals but note that it is not derived from GNAF product
dr-shorthair commented 4 years ago
  1. Add axiom Street sub-class-of geo:Feature but not gnaf:GnafEntity