chris-little
commented
2 years ago The Coverage concept in CovJSON is intended to conform to the ISO19123:2005/OGC Abstract Topic 6 concept of a coverage, in as much as a data format can support the specified 5 operations, 3 associations and 3 attributes.
CoverageJSON was not derived from the CIS JSON Schema, as the latter was not published until 2017 and the former started development in 2013. Both CoverageJSON and the Coverage Implementation Standard (OGC 09-126r8) are logical implementations of the conceptual ISO19123/2005.
Work is starting in the Coverages SWG to compare and contrast the two specifications to identify their limitations and extensions, and in particular the use of other CIS payload formats such as CIS JSON, GeoTiff and NetCDF. This work should give a good basis for future developments.
Part of First comment submitted in the Technical Committee vote to commence Work:
If this specification should be published as an OGC standard, it should clearly indicate that: - the Coverage concept in CovJSON does not conform rigorously to the standardized OGC/TC211 Coverage concept and definition (and to the subsequent data model).
- that the CovJSON schema is not derived from the OGC CIS JSON schema, and either that the relationship between the 2 schemas is not documented (nor straightforward), or that there is no relation[s]hip.
- the main limitations and extensions of CovJSON vs CIS JSON.