Re: [sdw] iso 19156 URIs vs SSN/SOSA URIs (#1372)

I think this is somewhat more complicated - depending on what you mean by "equivalent" and "realize"  - I would say SOSA is a realisation of ISO 19156, but extends it in some ways on the other hand. OGC's Observations and Measurements version 3 is explictly semantically aligned with these extensions - so this is "more true".   I wouldnt call the UML for 19156 a realization on the other hand - its the normative model - the OWL equivalent is a realization perhaps. Both SOSA and ISO1956 -as-owl could be seen as logical models derived from the same conceptual model - what relation you would use to describe this is not obvious - we model this explicitly in the OGC's knowledge graph....

I would say rather that https://isotc211.geolexica.org/concepts/1442/ identifies the concept which is the SKOS realisation of the http://def.isotc211.org/iso19156/2011/Observation#OM_Observation identifier for the UML object.

For OGC we are using content-negotiation-by profile to have the same URI for model elements resolve to both SKOS and OWL (and other forms) of the model - but we are looking at how to add explicit relations to these alternatives.  Its not owl:sameAS - and rdfs:seeAlso is a bit weak - prov:wasDerivedFrom  might be better.

(of course SOSA being a joint OGC/W3C specification in a W3C namespace its harder to make it behave the way we want to ... but nevertheless understanding the most useful and explicit approach is something we can put into a knowledge graph that does link these different components and alternatives.)

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Received on Monday, 10 October 2022 10:59:00 UTC