Thank you for having started this really interesting discussion. Let me try to provide some possible contributions.
As for geospatial data and conceptual models, ISO TC211 has been considered the abstract reference specification by the majority of the Community. In the last 15 years, the Committee has produced 60 specification dealing with geospatial data and information (e.g. ISO 1901 Geographic information — Reference model). Several international programmes started from their conceptual models to elaborate implementation schemas and profiles, noticeable INSPIRE, US GEO, Copernicus, OGC initiatives, etc. Naturally, other broad Communities have been doing a similar work for their domains (see bioinformatics, astronomy, etc.). In addition, technology-driven committees have also provided useful definitions as far as data and information are concerned, noticeably W3C, IETF, etc.
In my opinion, the challenge would be to start from these existing and well-used definitions and try to harmonize them in order to serve
A more general Community: Data Community independently from the utilized technology.
As to the metadata models, I think we need to face the same problem: there exist several well-defined and used metadata schemas that are conceived to model those features of the reality that are particularly useful for a given Community. Hence they are all useful (or better fit-for-a-given-purpose).
In the Brokering IG, we are trying to understand how to reconcile this useful diversity, introducing some more general solutions but leaving the scientific Communities to be free to evolve and be part of the solution to address their interoperability needs. In our vision, this is crucial to ensure sustainability.
My two cents.
Dr. Stefano Nativi
Head of the Division of Florence of the Institute of Atmospheric Pollution Research of the National Research Council of Italy (CNR-IIA)
Via Madonna del Piano, 10 (50019) Sesto Fiorentino (FI) ITALY
Tel +39 055-522-6590
Cell +39 340 6428427
Email ***@***.*** ***@***.***
Da: gbergcross=***@***.***-groups.org [mailto:***@***.***-groups.org] Per conto di Gary
Inviato: Tuesday, February 2, 2016 19:30
A: YunqiangZhu <***@***.***>; Data Fabric IG <***@***.***-groups.org>
Cc: Peter Wittenburg
<***@***.***>; Raphael Ritz (***@***.***) <***@***.***>
Oggetto: Re: [rda-datafabric-ig] dfig-terms
Of your list we have discussed Datum,
One of our definitions for Dat a has the idea of a unit.
Data is a collection of datum.
Others in your list seem important (scale and granula rity) but haven't been part of a RDA group's work yet.
They obviously have been discussed and are part of some models. There is an RDF vocabulary for scale for example.
Other terms are spatial and temporal and have relevant standards as noed by Jeffery in a later email:
For spatial coordinate systems metadata ISO191115 / EC INSPIRE standard is very good and widely used.
There are as well some ontological models for these but haven't been integrated into our current vocabulary.
Gary Berg-Cross, Ph.D.
Member, Ontolog Board of Trustees
On Mon, Jan 25, 2016 at 1:31 PM, YunqiangZhu <***@***.*** > wrote:
Actually, I am unclear the scale of DFIG terms and what are the basic principles of selecting terms. So I try to add some terms I think they are very important to define, describe and use data. Hope it will useful to perfect DFIG terms.
ZHU, Yunqiang Ph.d Professor
Director, Department for Geo-data Science and Sharing
Deputy Director,State Key Lab. of Resources and Environmental Information System
Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences
诸云强 博士 研究员
From: Peter Wittenburg
Date: 2016-01-25 02:14
To: ***@***.***-groups.org ; Gary Berg-Cross (***@***.***) ; Raphael Ritz (***@***.***)
Subject: [rda-datafabric-ig] dfig-terms
i just grabbed all terms I could in DFIG documents and comments so far. I am sure that much is missing.
But it may give a first impression. Most of the terms are not well-defined and people are using different definitions.
Please, feel free to add terms and references.
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R: [rda-datafabric-ig] dfig-terms
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