Difference: SSA-1_1-Err-4 (1 vs. 2)

Revision 22023-12-06 - MarkusDemleitner

 
META TOPICPARENT name="SSA-1_1-Errata"

SSA v1.1 Erratum 4: Make coverage optional

Author: James Dempsey

Date last changed: 2023-12-04

Date accepted:

Github Issue: SSA Issue #8

Rationale

Changed:
<
<
SSA 1.1 sec 4.2.5.10 states MANdatory coverage information (SpatialAxis.Coverage.Location.Value + 2 others), but they are missing from the example in Appendix A. Theoretical services cannot provide coverage information so these columns should be made optional to support theoretical services.
>
>
SSA 1.1 sec 4.2.5.10 states MANdatory coverage information (Char.SpatialAxis.Coverage.Location.Value + 2 others), but they are missing from the example in Appendix A. Theoretical services cannot provide coverage information so these columns should be made optional to support theoretical services.
 

Erratum Content

In section 4.2.5.10, add the following text at the end of the introductory sentence.

Changed:
<
<
This component is optional to support theoretical services which do not have coverage information. However, where coverage information is available, such as in observational services, the columns SpatialAxis.Coverage.Location.Value, SpatialAxis.Coverage.Bounds.Extent, TimeAxis.Coverage.Location.Value, SpectralAxis.Coverage.Location.Value, and SpectralAxis.Coverage.Bounds.Extent should be provided.
>
>
Added:
>
>
This component is optional to support theoretical services which do not have coverage information. However, where coverage information is available, such as in observational services, the columns Char.SpatialAxis.Coverage.Location.Value, Char.SpatialAxis.Coverage.Bounds.Extent, Char.TimeAxis.Coverage.Location.Value, Char.SpectralAxis.Coverage.Location.Value, and Char.SpectralAxis.Coverage.Bounds.Extent should be provided.
  and in the table in that section change the value in the Req column from MAN to REC for the following rows:

UTYPE Description Req Default
Changed:
<
<
SpatialAxis.Coverage.Location.Value Observed position, e.g., RA DEC REC  
SpatialAxis.Coverage.Bounds.Extent Aperture angular diameter, deg REC  
TimeAxis.Coverage.Location.Value Midpoint of exposure (MJD) REC  
SpectralAxis.Coverage.Location.Value Midpoint of Spectral coord range REC  
SpectralAxis.Coverage.Bounds.Extent Width of spectrum in meters REC  
>
>
Char.SpatialAxis.Coverage.Location.Value Observed position, e.g., RA DEC REC  
Char.SpatialAxis.Coverage.Bounds.Extent Aperture angular diameter, deg REC  
Char.TimeAxis.Coverage.Location.Value Midpoint of exposure (MJD) REC  
Char.SpectralAxis.Coverage.Location.Value Midpoint of Spectral coord range REC  
Char.SpectralAxis.Coverage.Bounds.Extent Width of spectrum in meters REC  
 

Impact Assessment

Changed:
<
<
By loosening the requirements for positional description of the spectra, existing theory services will be able to be compliant. Clients will need to allow for the coverage fields to be missing, however that is already the case for any registered SSA theory services.
>
>
By loosening the requirements for positional description of the spectra,
Added:
>
>
existing theory services will be able to be compliant. Clients will need to allow for the coverage fields to be missing. However, they already need to do that for established SSA theory services, of which there are at least five at this point; RegTAP query:
 
Changed:
<
<

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select count(ivoid)

Added:
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from rr.res_detail where detail_xpath='/capability/dataSource' and detail_value like 'theor%'


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Revision 12023-12-04 - JamesDempsey

 
META TOPICPARENT name="SSA-1_1-Errata"

SSA v1.1 Erratum 4: Make coverage optional

Author: James Dempsey

Date last changed: 2023-12-04

Date accepted:

Github Issue: SSA Issue #8

Rationale

SSA 1.1 sec 4.2.5.10 states MANdatory coverage information (SpatialAxis.Coverage.Location.Value + 2 others), but they are missing from the example in Appendix A. Theoretical services cannot provide coverage information so these columns should be made optional to support theoretical services.

Erratum Content

In section 4.2.5.10, add the following text at the end of the introductory sentence.

This component is optional to support theoretical services which do not have coverage information. However, where coverage information is available, such as in observational services, the columns SpatialAxis.Coverage.Location.Value, SpatialAxis.Coverage.Bounds.Extent, TimeAxis.Coverage.Location.Value, SpectralAxis.Coverage.Location.Value, and SpectralAxis.Coverage.Bounds.Extent should be provided.

and in the table in that section change the value in the Req column from MAN to REC for the following rows:

UTYPE Description Req Default
SpatialAxis.Coverage.Location.Value Observed position, e.g., RA DEC REC  
SpatialAxis.Coverage.Bounds.Extent Aperture angular diameter, deg REC  
TimeAxis.Coverage.Location.Value Midpoint of exposure (MJD) REC  
SpectralAxis.Coverage.Location.Value Midpoint of Spectral coord range REC  
SpectralAxis.Coverage.Bounds.Extent Width of spectrum in meters REC  

Impact Assessment

By loosening the requirements for positional description of the spectra, existing theory services will be able to be compliant. Clients will need to allow for the coverage fields to be missing, however that is already the case for any registered SSA theory services.


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