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MeasurementOrFacts - Darwin Core Hour Input Form 2/7/2017 18:10:28 #22

Open iDigBioBot opened 7 years ago

iDigBioBot commented 7 years ago

A user submitted this information via the Darwin Core Hour webform: Timestamp: 2/7/2017 18:10:28 Please provide a topic of interest: I would like to learn more about MeasurementOrFact. What the terms are. How best to use it. Who is using it. If it's utilized by GBIF. Are you capable of and interested in participating: No Who else would you recommend to participate in the presentation: What resources can you point to: Your name: Your email:

tucotuco commented 7 years ago

The MeasurementOrFact class supports values, units, accuracies and other metadata about measurements or facts. Given the nature of measurements (potentially many per core record) they do not fit in Simple Darwin Core, which you can think of as Darwin Core in a single spreadsheet with no fields repeated. Because of this potentially one-to-many relationship between a core record and measurements or facts, the best way to include them is through the Darwin Core Measurement Or Facts extension. Or, if that extension is insufficient for a particular need, the Extended Measurement Or Facts extension may be more suitable.

pzermoglio commented 7 years ago

You may check the relationship between Simple Darwin Core and Extensions in the documentation, Wiki page: Simple Darwin Core, in particular under the subtitles Simple Darwin Core vs. Extensions and Darwin Core Extensions - just a brief intro. In there you'll find a brief example for MeasurementOrFacts.

debpaul commented 7 years ago

Hello @timrobertson100 @mdoering

  1. Is GBIF mobilizing datasets that have MeasurementOrFact data?
  2. How does a user searching the GBIF interface, figure this out?
mdoering commented 7 years ago

I am sure we index datasets having measurements and facts. But I am afraid we do not allow searching for them at this stage. They should be exposed in the API and portal when showing the verbatim details. I need to hunt for an example records

debpaul commented 7 years ago

Thanks @mdoering I look fwd to examples :-)

mdoering commented 7 years ago

Example records: https://demo.gbif.org/occurrence/202057537 https://demo.gbif.org/occurrence/202057542

http://api.gbif.org/v1/occurrence/202057537/verbatim

debpaul commented 7 years ago

@tucotuco @peterdesmet @garymotz @ekrimmel given questions at recent dch 7 seems reasonable that a webinar (or two?) be done on the measurementOrFact extension (with concrete examples - such as those provided by @mdoering above). Same situation for ResourceRelationship and DynamicProperties. All could benefit from more examples - easy to see / find / mull over.