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The templates on the TERN Plot Ontology description illustrate the application pattern.
Action Items
- Edmond Chuc (Unlicensed) Link FeatureOfInterest and TERN Plot Ontology description to the new page about the description of the Plot Ontology and the Data Ontology.
Advantage of Using a Generic Model
Since the observation type is indicated by properties of the observation (i.e. the observedProperty and hasFeatureOfInterest), the generic classes Observation and ObservationCollection can be used for allobserved data. The controlled vocabulary of ObservableProperties is maintained separately, and can be updated frequently, without having to touch the main data structures.
We could have defined a sub-class of ObservationCollection for each CORVEG table (i.e. thematic group), but this would tie the ontology directly to CORVEG, which is undesirable because
the CORVEG conceptual model does not match all the data submitted by the various providers, while TERN-plot - which is a lightly extended SSN/SOSA model - is flexible enough to cope
too much specialization/customization compromises compatibility with observation data from other sources or providers, or from other discipline areas
Where an ObservationCollection does correspond with a row from a CORVEG table, the name of the table can be indicated using the dct:type property. This may assist discovery and processing by users or applications who are familiar with CORVEG. A list of observation groups is maintained as a TERN-plot 'controlled vocabulary'.
Detailed Implementation
Detailed implementation of CORVEG entities in RDF can be found under Table Mappings.
CORVEG Controlled Vocabularies
CORVEG controlled vocabularies can be viewed at the persistent URI http://linked.data.gov.au/def/corveg-cv.
Datatypes
Observation results are encoded using a set of standard data-Datatypes