ProvTeleconOctober2016 < IVOA

IVOA Web>IvoaDataModel>ObservationProvenanceDataModel>ProvTeleconOctober2016 (2016-10-18, KristinRiebe) (raw view)

---+ Provenance Telecon October 2016

<span style="background-color: transparent;">Topics:</span>
   * Modelio model
   * Use cases
   * Previous efforts
   * Provenance access and VO-Table serialization
   * ActivityCollection
   * Prov-N serialisations wih descriptions, status, group (Michele's email)
   * Meeting at next InterOp
Participants:
   * Mireille
   * François
   * Kristin
   * Markus
   * Michèle
   * Mathieu
Minutes:

   * DM name: ObsProv, ProvenanceDM, VOProvDM...<br /> 
      * need "VO"? short or long name?
      * when outside of IVOA, add IVOA before the name and explain
      * VO is generally not use in standard names (except VOTable)
      * use "ProvenanceDM", more explicit
   * VO architecture 
      * add SimDM
      * add DataSetDM? or just ObsCore
   * Modelio model 
      * see zip file in /datamodel-diagrams
      * see png files in /description: 
         * LinkingClassesFromIVOADatasetDM.png
         * Relations Between EntityDatasetCollection.png
      * green boxes are from DatasetDM
      * all attributes in green boxes correspond to Descripton attributes, they could also be simply listed in the main class (Entity, Activity, Agent) if we consider the core model
      * entityID/datasetID 
         * same thing?
         * add in the text : entityID is defined in the context of obs or is mapped to datasetID
      * diagrams to include in the document: 
         * core,
         * relations to VO DM,
         * options (descriptions, collections),
         * relation W3C (only in text, not a diagram)
      * services would have to implement the core classes/relations, not the W3C options
      * link Entity-Dataset should be an inheritance, but then Dataset is modified with respect to the DatasetDM... Composition or Inheritance? to be discussed at IVOA meeting
   * Use cases and implementation 
      * 3 use cases described: RAVE, CTA, POLLUX
      * to be added: HiPS, lightcurves
      * add examples of developments (links to prototypes)
      * "use case": in fact it describes contexts where provenance can be applied, or requirements of involved projects, but use cases are already listed in the top sections
   * Participation+Talk at ADASS 
      * Kristin: 
         * 12min + 3min
         * introduction as in the last interop, relation with VO DM, list of related projects that require provenance
         * 4 pages proc, 1 or 2 diagrams, link to other documents (ADASS proceedings last year)
      * Mireille, invited talk on DM
      * Mathieu: poster on CTA DM, including the core concept of Provenance and links to the above talks
   * Access, VO-Table serialization as proposed by Francois in the working draft 
      * replace PARAM by FIELD, and add values in a data section
      * one table per activity with relations as PARAM/FIELD 
         * ok to go backward
         * difficult to search the relations
      * other structure possible, as in XML/JSON PROV serialization: 
         * tables for activity/entity/agent
         * tables for relations
   * Serialization 
      * hierarchy of attributes from ActivityDescription or flat list?
      * flat list: loses the structure
      * however the structure is known and the attributes can be mapped back to the database
   * Actions: 
      * Mireille, Kristin --&gt; prepare talks
      * Mireille: update VO architecture diagram
      * Mathieu: update use cases with implementation descriptions and links
      * Mathieu: send ADASS poster on CTA DM
      * François: propose another VOTable serialization
      * Update involved projects (use case and implementation section)
      * at IVOA: 
         * status talk, HiPs talk, CTA talk, semantics
         * meeting Friday 21 at lunch time
   * To be discussed later: 
      * ActivityCollection
      * Points raised by Michèle (status, docuLink/bibref, group)
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Topic revision: r1 - 2016-10-18 - KristinRiebe

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