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ProvTeleconMay2018
(2018-06-01,
MathieuServillat
)
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Participants: Mireille, François, Ole, Anastasia, Michèle, Mathieu
ProvDM
:
Parameter as an Entity, or as an independent class?
Parameter class
specific concept in IVOA (and in general)
link to configuration of an Activity (though it is not in the main requirement for IVOA Provenance)
no history needed in this context
exist in
SimDB
However
What if we want the history of a parameter?
Some Parameters may in fact be listed as Entities
so one need to collect both Parameters and Entities to have a list of input parameters
ParameterEntity
class
logical place in the
W3C
system
specializationOf an Entity with PARAM attributes
However
Inherits complex relations and attributes
Not directly linked to the Activity
so what is the difference with a basic Entity?
+ UWS system use of parameters as a use case
All inputs to a UWS job are uws:param objects
Need to map Parameters and Input Entities to uws:param
The list of inputs with their nature must be given (e.g. as an
ActivityDescription
+ roles for input)
Parameters and Entities are very similar, but:
A parameter can be written more simply (e.g. PARAM in VOTable, uws:param, POST/GET parameters)
An Entity is more complex, one need to store the relation and role in addition to the parameter attributes
=> The concept of Parameter exist and should appear in the Provenance DM
propose two solutions for a use case to discuss the best representation
in any case, in the
W3C
context, Parameters are Entities
Descriptions: stored as Bundles? link with specializationOf?
Seems to be logical
Is it an abuse of what is a Bundle ?
Note that Bundle is an extension of the
W3C
core concepts
The proposed
ActivityDescription
serialization as an extended
DataLink
service descriptor corresponds to this Bundle
W3C
serialization (do we really need an IVOA format?)
Mathieu : write a section to describe the serialization of the DM with
W3C
concepts
Parameter as
W3C
Entity
Descriptions as
W3C
Bundle
use specializationOf relation
ActivityFlow
: still issues with the wasGeneratedBy multiplicity (add level attribute?)
not in the core model
as an extension, different scopes, additional section ?
Mireille : Summarize and see how to integrate this to the draft
Access:
status of
ProvDAL
status of
ProvTAP
new draft
example included
Next meetings:
IVOA Victoria : Mireille, François, Ole, Michèle, Mathieu
http://wiki.ivoa.net/twiki/bin/view/IVOA/InterOpMay2018MeetingtPage
DM: release a new version (good in the context of ASTERICS)
with
W3C
representation
with open questions on Parameter
discussion in the DM group
DAL:
discuss the Access documents with the DAL group
Provenance Week participation (though deadline for posters was in April it seems...)
http://provenanceweek2018.org/
TaPP
Track seems better suited for discussions on Astronomy needs
Anastasia may have a poster there
ASTERICS EDP Forum meeting in Heidelberg, end of June
http://www.g-vo.org/edp-forum-2018/
plan a provenance discussion there ?
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Topic revision: r1 - 2018-06-01
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MathieuServillat
IVOA
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