Skip to content

Problems in untp-core ontology

Created by: VladimirAlexiev

I got https://jargon.sh/user/unece/untp-core/v/working/artefacts/jsonld/render.jsonld, saved as untp-core-ontology.jsonld, and converted to turtle untp-core-ontology.ttl, eg

riot --formatted ttl untp-core-ontology.jsonld > untp-core-ontology.ttl

Problems:

  • there's no owl:Ontology node with metadata (name, who, when, version number, preferredNamespaceUri and prefix)

Props

  • 5 props use wrong range schema:name (that's a prop so it cannot be a range!) and wrong type owl:ObjectProperty (a name is a string not an object!), eg
untp-core:facilityName
        rdf:type               owl:ObjectProperty , rdf:Property ;
        rdfs:comment           "The name of the facility, represented as a text string." ;
        rdfs:label             "facilityName" ;
        schema:domainIncludes  untp-core:Facility ;
        schema:rangeIncludes   schema:name .

There's no reason to use different props for the name of things. So remove all these props, and just say:

schema:name schema:domainIncludes  untp-core:Facility, untp-core:Standard, untp-core:Product...
  • 3 props violate naming convention: Latitude, Longditude, MaterialName
  • Remove MaterialName and just use schema:name as described 2 items above

Enumerations

  • A number of enumeration classes are used but not defined, eg
untp-core:hashMethod  rdf:type  owl:ObjectProperty , rdf:Property ;
        schema:rangeIncludes   untp-core:hashMethodCode .
<https://test.uncefact.org/vocabulary/untp/core/hashMethodCode#SHA-256>
        rdf:type        untp-core:hashMethodCode .
  • These classes should conform to naming convention, eg HashMethod
  • They must NOT have a suffix "Code". A hash method is NOT a code, it's only identified by a code but has a life of its own.
  • The values use undefined prop untp-core:Name (which also doesn't conform to naming convention). Just use schema:name
  • The values use an unhealthy mix of 3 props. Never all 3 are populated, and there are parasitic empty values (eg below). Just use schema:name, schema:description 
        rdf:value       "Secure Hash Algorithm 256 bits" ;
        rdfs:comment    "" ;
        untp-core:Name  "SHA-256" .