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w3c / sdw-sosa-ssn

Repository of the Spatial Data on the Web Working Group for the SOSA/SSN vocabulary
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move validTime to sosa: #241

Closed rob-metalinkage closed 1 month ago

rob-metalinkage commented 2 months ago

validTime is defined in alignments:

https://github.com/w3c/sdw-sosa-ssn/blob/gh-pages/ssn/rdf/ontology/alignments/sosa-oms.ttl#L384

but referenced like any other time property in description of sosa:ObservationCollection which is in sosa: namespace here:

https://github.com/w3c/sdw-sosa-ssn/blob/gh-pages/ssn/rdf/ontology/core/sosa-observation.ttl#L65

Feels like it should just be promoted to sosa: namespace to reduce complexity.

Note validTime is a property of an observation in SensorThings

https://github.com/w3c/sdw-sosa-ssn/blob/gh-pages/ssn/rdf/ontology/core/sosa-observation.ttl#L65

dr-shorthair commented 2 months ago

Yes, I spotted that when doing my consistency check in https://github.com/w3c/sdw-sosa-ssn/commit/5d06e85c172015dafd3347587890c2a3a4ff1f8c

I think the solution is to clean up the diagrams and documentation elsewhere, not willy-nilly move alignment terms into the core.

dr-shorthair commented 2 months ago

SamplingCollection PR is now merged, with consistency improvements. validTime now only mentioned in OMS alignment.

See https://w3c.github.io/sdw-sosa-ssn/ssn/ to verify.