ObsCore-1_1-Erratum-1 < IVOA

IVOA Web>IvoaDataModel>ObsDMCoreComponents>ObsCoreDMvOnedotOne>ObsCore-1_1-Erratum-1 (2019-05-24, MireilleLouys) (raw view)

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---+ ObsCore 1.1: Erratum 1

Author: DM WG

Date last changed: 2019-05-10 Update of errata page after tcg review . L. Michel , M.Louys.

<span style="white-space: pre;">Previous change : </span>2018-12-19

Date accepted:
---++ <span style="background-color: transparent;">Rationale</span>

<span style="background-color: transparent;">This erratum corrects a few issues noted in the </span> [[http://www.ivoa.net/documents/ObsCore/20170509/REC-ObsCore-v1.1-20170509.pdf][ObsCore-1.1 document ]].

   1 <span style="background-color: transparent;">Table 6 page 56 and table 7 page 58, list </span><span style="background-color: transparent;">invalid UCD strings for certain elements (invalid with respect to the UCD1+ standard) </span><span style="background-color: transparent;">in obstap columns definition.</span>
   * *obs_publisher_did*: UCD = _meta.ref.uri;meta.curation_ 
      * The problem being that <em>meta.curation </em>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.
   * *dataproduct_type* and <strong>dataproduct_subtype : </strong>UCD = _meta.id in the REC ObsCore1.1_
      * <span style="background-color: transparent;">The problem is that </span><em>meta.id </em>is more appropriate for an identifier while here we consider a class of products<em> ; meta.code.class </em>should be preferred
      * The example serialisation described in section C.3 had a bad _meta.id;class_ UCD for dataproductype .
      * <span style="background-color: transparent;">This must be corrected in the example presented in C.3</span>
---++ Erratum Content
---++++ Invalid UCDs in Table 6 page 56 and table 7 page 58: _TAP_SCHEMA.columns_
---+++++ Original Wording (Invalid UCDs)
   * *obs_publisher_did*: UCD = <em><span style="background-color: transparent;">meta.ref.uri;meta.curation</span></em>
   * *publisher_id*: UCD = <em><span style="background-color: transparent;">meta.ref.uri;meta.curation</span></em>
   * *o_stat_error:* UCD =<em> <span style="background-color: transparent;">stat.error;phot.flux</span></em>
   * <strong>dataproduct_type: </strong>UCD _=_ _meta.id_
   * <strong>dataproduct_subtype : </strong>UCD <em>= </em><span style="font-style: italic;">meta.id</span>
---+++++ New Wording (correct UCDs)
   * *obs_publisher_did* <span style="background-color: transparent;">: UCD = _meta.ref.ivoid_ </span>
   * *publisher_id*: UCD = <em><span style="background-color: transparent;">meta.ref.ivoid</span></em>
   * *o_stat_error*: UCD = <em><span style="background-color: transparent;">stat.error</span></em>
   * *dataproduct_type:* <span style="background-color: transparent;"> </span> UCD = meta.code.class
   * <strong>dataproduct_subtype: </strong>UCD = <span style="background-color: transparent;">meta.code.class </span>
C.3 example using dataproduct_type has been changed accordingly.
---++ 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 warning messages.
---++ Notes

   1 <span style="background-color: transparent;">The proposed changes are in the errata proposed document attached here [[%ATTACHURL%/REC-ObsCore-v1.1-20190510_errata.pdf][REC-ObsCore-v1.1-20190510_errata.pdf]]</span>
   1 <p>It has been proposed, in this erratum, to extend the use of _obs_publisher_did_ to others IDs than _ivoids (DOI e.g.)_. <br />Answer: Changing the role of an identifier is out of the scope of an errata. This issue could be discussed for Obscore 1.2.</p> <p> </p>
<span style="color: #0000ff;"><span style="caret-color: #0000ff;"><span style="text-decoration: underline;"> </span></span></span>

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Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
pdf	REC-ObsCore-v1.1-20181130_errata.pdf	r2 r1	manage	1155.6 K	2019-01-07 - 12:09	MireilleLouys	Obscore 1.1 errata included
pdf	REC-ObsCore-v1.1-20190510_errata.pdf	r1	manage	1158.9 K	2019-05-10 - 13:22	MireilleLouys	Update for the REC - document including errata changes -M.Louys

Topic revision: r14 - 2019-05-24 - MireilleLouys

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