Test turtle file from Information Model in graphdb

[tloubrieu-jpl]

Steve created a turtle file from the information model.

We need to ingest it in a graph database and understand how it makes sense to have it stored this way and give him feedback on that.

pds4_ontology_classes_properties_instances.ttl.zip

Feedback:

• TTL file is ANSI / ASCII encoded. To load it into Apache Jena I had to convert the file into UTF-8.
• The file has a subset of ontology (instrument types, some properties)
• The file has a subset of PDS context products: instruments only.

Questions / Issues

• Why instruments don't have references to instrument hosts, even though instrument_to_instrument_host property is defined.
• Why pds4:urn:nasa:pds:context:type_list_area::1.0 extends pds4:urn:nasa:pds:context::1.0 similar to Instrument, Target, etc. How it is used?
• There are 2 branches of dust detectors: (1) instrument → dust → leam.a17a; cda.co; hrd.co. (2) (unused?) instrument → dust_detector → [no instruments]

[tloubrieu-jpl]

The turtle file handles inheritance and jena need to be reconfigured to handle that.

[tloubrieu-jpl]

@tloubrieu-jpl need to transfer to steve

[jordanpadams]

@tloubrieu-jpl what needs to happen with this ticket?

[tloubrieu-jpl]

We can keep it in the ice box until we have a student who can work on it.