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  • Building of ontologies in the US seems to be mature example
  • Take different viewpoints: 
    • Business use cases
      • How to help communities to create vocabs
        • Importance of ease of use and interoperability. A huge vocab of everything not tractable.
      • ANDS services - 3 systems
        • RVA Portal - Discovery of vocabs for use, for easy access
        • SISSVoC - repository for visualisation
        • Pool Party - editing suite for vocabs
        • Low-level access for developers/geeks
        • Systems put together after approaches by several institutions
      • Supply a range of tools for users
        • E.g. easy creation of UI lists
      • Various levels of sophistication for governance
        • What is the right level? What is good governance?
      • Notification of changes of terms
        • 'Notify any changes to terms into collections'
      • Who is responsible for tracking the crosswalks?
      • Use of similarity measures rather than direct matches (don't over simplify)
      • Quantitative measure of relationship strength
      • Rely on the domain experts to resolve similarity of terms
        • 'Make your definitions born linked'
      • Cross-domain vocabs are hard
        • e.g. how to get the sub-set that you want to use
        • Or problem when for example - observed property not sitting in the right domain.
      • Authority; who signs off on vocabularies? Can be informal
    • Example cases
      • Subsetting terms
      • Observed properties, units of measure - how to make use of a range of vocabularies? E.g. link between NEII, ALA
      • Ease of use in finding vocabularies; need to create subsets. 
      • How to build consensus on things? The RFC/internet example. 
        • Reproducible process across many areas
        • RDA interest group vocabulary services specification (IETF)
        • Requirement for this group to identify needs for this RDA group? 
        • Git pull request example
        • Two aspects of governance
          • Creation of the vocabularies (then subsetting and proxying)
          • Changes and ongoing management of vocabularies
    • Key points
      • We need to support some of these use cases with the infrastructure
        • No complete solutions yet
        • Subsetting of vocabularies
        • Observable properties space
      • Discovery and visualisation of vocabularies.
      • Community Ownership
      • This group to provide input into RDA interest group vocabulary services specification (bring together NCRIS capabilities in this space)
      • Work happening in OGC and GEO definitions space

CODATA recommendations

  • Doing an audit of existing vocabularies - create a list
    • Create a star rating assessment
      • Community needs will be different, one star will be ok for some
    • How can different unions help each other to bring up/improve sophistication of vocabularies?
    • Involve RDA, OGC etc
    • Commonly don't look to re-use, this should be encouraged
  • Multi-lingual support
  • Is usage of vocabularies a metric?
    • E.g. my friends/community are already using this vocab
  • Support content negotiation for different profiles
  • In the marine space - international re-use is common
  • ESIP is taking on MMI initiative
    • Any recommendations/experiences
  • Sustainability and designing URIs that are flexible
    • E.g. if NASA gives up SWEET, what happens to sweet URIs?
    • For increased adoption and re-location - good to have generic name spaces
  • Any working groups that are looking at transition plans for end of life of vocabs/URIs?
    • Responsible governance
    • Coordination of approaches
    • Agile infrastructure
    • Define a best practice for succession 
  • Use international groups who have resilience to changes in funding
  • Guidelines to allow organisations to push back against bureaucracy 
    • E.g. URI schemes with org names embedded
  • How to avoid complexity?
    • Can be complexity behind the scenes, but risk is that if you make lots of simple solutions the aggregate becomes more complex



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