Vocabulary: http://www.ivoa.net/rdf/datalink-core Author: Mireille Louys , François Bonnarel Date: 2021-07-19 Term: #progenitor Action: Modification Label: Progenitor Description: Pre-existing science data that were used to create this dataset Used-in: http://archive.eso.org/datalink/links?ID=ivo://eso.org/ID?ADP.2020-06-16T18:05:22.868 Rationale: The modification involves only the term description. Previous definition was "data resources that were used to create this dataset (e.g. input raw data)", which was ambiguous, because it could encompass any dataset or resource used to produce #this, including calibration data. According to usage of terms in the workflow and provenance domain the new Description restricts progenitor to the sole less advanced science data used to produce #this. By "science data" we mean some signal directly obtained from observations or simulations of targeted parts of the sky or derived from it. This is distinguished from calibration(-applied) data which allows to transform science data measurements in absolute physical units. By distinguishing progenitor and calibration(-applied) data we allow to characterize specific roles for datasets in the process of production of #this. The usage example is taken from the ObsCore result http://archive.eso.org/tap_obs/sync?REQUEST=doQuery&LANG=ADQL&MAXREC=1&QUERY=SELECT+*+FROM+ivoa.ObsCore+WHERE+obs_publisher_did+%3D+%27ivo%3A%2F%2Feso.org%2FID%3FADP.2020-06-16T18%3A05%3A22.868%27 In this case #this (the record in ObsCore) is an IFS cube. The progenitors are KMOS observations (https://www.eso.org/sci/facilities/paranal/instruments/kmos.html) as it appears in DataLink response.