ObsCore 1.1: Erratum 1
Author: DM WG
Date last changed: 2018-12-19
Date accepted:
Rationale
This erratum corrects a few issues noted in the ObsCore-1.1 document .
- Table 6, page 56, lists invalid UCD strings for certain elements (invalid with respect to the UCD1+ standard) in obstap columns definition.
Erratum Content
Invalid UCDs in Table 6 page 56: TAP_SCHEMA.columns
Original Wording (Invalid UCDs)
- obs_publisher_did: UCD = meta.ref.uri;meta.curation
- The problem being that meta.curation is a primary word (P) being used as secondary. meta.ref.uri is indifferent (Q)
- publisher_id: UCD = meta.ref.uri;meta.curation
- Same as obs_publisher_did
- o_stat_error UCD = stat.error;phot.flux
- The issue here being that the addition of phot.flux is too specific for the usage.
New Wording (correct UCDs)
- obs_publisher_did : UCD = meta.ref.ivoid
- publisher_id: UCD = meta.ref.ivoid
- o_stat_error: UCD = stat.error
Impact Assessment
- ObsCore clients normally use column names or perhaps utypes to identify data model members. The change of the UCDs proposed here should not impact them.
- Clients not aware of ObsCore will profit from the proposed change; for obs_publisher_did and publisher_id, they will no longer produce diagnostics for invalid UCDs, and for o_stat_error they will not be mislead any more.
- This change may rise Taplint warnings.
Notes
- The proposed changes are in the errata proposed document attached here http://wiki.ivoa.net/internal/IVOA/ObsCore-1_1-Erratum-1/REC-ObsCore-v1.1-20180222_errata.pdf