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Metadata Catalogue Implementations: GSQ & TERN
for the ANZLIC Metadata WG Nicholas Car | Senior Experimental Scientist 21 February 2019 Land & Water
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What is interesting about these?
both are catalogues contributing to a total information graph both use familiar off-the-shelf tech + extensions both use the latest DXWG stuff
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GSQ – Geological Survey of QLD
GSQ is undertaking a “Geoscience Data Modernisation Project” CSIRO is providing a model-based approach to thinking about data also training GSQ staff to model and implement models
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GSQ – perspectives All GSQ data can be viewed from at least 2 perspectives
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GSQ – perspectives All GSQ data can be viewed from at least 2 perspectives ‘regular’ catalogues (GN, CKAN, MAGDA etc.) only deal with the management perspective catalogue tools can cater for some ‘realm’ perspective classes
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GSQ – perspectives Realm perspective cataloguing in CKAN
Either the final or an initial catalogue
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GSQ – perspectives All GSQ data can be viewed from at least 2 perspectives ‘regular’ catalogues (GN, CKAN, MAGDA etc.) only deal with the management perspective catalogue tools can cater for some ‘realm’ perspective classes not all – not GSQ Samples this will be a catalogue just like GAs!
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GSQ – making it all work Linked Data brings all the catalogues together overarching model crosses the perspectives all tools understand URIs all tools ‘speak’ RDF caches of all content can be made management realm source isSampleOf Dataset A Borehole N Sample X
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GSQ – Use of vocabs in catalogues
GSQ is creating vocabs for all code list items in catalogues CKAN cat. calls on vocabs at page-load time for up-to-date use CKAN “Scheming” extension
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GSQ – Use of vocabs in catalogues
GSQ is creating vocabs for all code list items in catalogues CKAN cat. calls on vocabs at page-load time for up-to-date use GSQ using VocPrez to list all their vocabs and others of interest to them
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GSQ – CKAN export as RDF A test geochemistry dataset available in RDF conformant to DCAT (rev) and a geochemistry profile thereof
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GSQ – classes & tool list
Datasets CKAN Organisations CKAN Permits CKAN People CKAN? Sites (inc. Boreholes & Mines) - CKAN but perhaps others Samples Graph DB + Linked Data API Observations Relational DB + application
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TERN – Terrestrial Ecosystems Research NEtwork
CSIRO is providing a model-based approach to thinking about data also training GSQ TERN staff to model and implement models CSIRO is recommending data exchange with partner agencies (suppliers and users) use RDF as the format & the TERN model as the data model
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GSQ TERN – perspectives
All GSQ TERN data can be viewed from at least 2 perspectives
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TERN – classes & tool list
Datasets GeoNetwork Organisations Drupal People Drupal Sites Graph DB + Linked Data API Samples Graph DB + Linked Data API Observations Graph DB + Linked Data API
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TERN – data ingestion TERN can get data in a number of ways:
human data entry – via catalogue forms machine data entry – via API will all be RDF APIs validate data validator API RDF document if valid, store DB
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TERN & GSQ data pooling in both GSQ & TERN cases, when (meta)data from the various systems needs to be pooled for cross-querying, we have 2 options” cross indexing: one system knows about some stuff in other systems caching bring data from multiple systems into one DB very easy if all systems speak RDF! tested at scale in a number of projects already
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Thank you Nicholas Car Senior Experimental Scientist t +61 7 3833 5632
e w people.csiro.au/Nicholas-Car Add Business Unit/Flagship Name
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