ProvTeleconMay2018 < IVOA

IVOA Web>IvoaDataModel>ObservationProvenanceDataModel>ProvTeleconMay2018 (2018-06-01, MathieuServillat) (raw view)

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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
      * =&gt; 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
      * <a target="_blank" href="InterOpMay2018MeetingtPage">http://wiki.ivoa.net/twiki/bin/view/IVOA/InterOpMay2018MeetingtPage</a>
      * 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...)
      * <a target="_blank" href="http://provenanceweek2018.org/">http://provenanceweek2018.org/</a>
      * 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
      * <a target="_blank" href="http://www.g-vo.org/edp-forum-2018/">http://www.g-vo.org/edp-forum-2018/</a>
      * plan a provenance discussion there ?

Topic revision: r1 - 2018-06-01 - MathieuServillat

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