Meeting Notes - 22.07.2022 #33
rartino
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Suggestions for improvements and notifications from Saulius:
The Task Group should focus on developing the EMMO domain ontology for crystallography, generating concepts that can be mapped to the CIF (Core) ontology.
We should go the "weak/soft commit" route, discussing models, adding it the "Data" perspective in EMMO.
Saulius: The issue with models is that they are opinionated; they all have some concepts that are taken as fact for a basis. They may also have built-in bias.
Question (James): How far do we go in stating that even such a thing as a "Crystal" is a true de facto physical object or is it in and of itself also a "model"?
Weak/soft commit: Using the "Data" EMMO perspective. A researcher/person can use a concept from this perspective to describe their real world object, softly committing to they hypothesis that their real world object can be described by this concept/model.
Hard commit: Using the "Physicalistic" EMMO perspective. A researcher/person uses a concept from this perspective to describe their real world object, essentially stating that it is by definition this concept (e.g., a "Crystal"). There can be no counter argument done.
Part conclusion: We should use only (for now) the "Data" perspective to discuss models.
For models we should relate it closely with the "Symbolic" perspective (maths); symmetry descriptions, Laue equations, etc.
When describing models, we should include notions of their conceptual limits.
It would be nice if the ontology could tell us whether two models relate to the same material and if it makes sense that these two models relate to the same material/sample.
Concepts to put into ontology:
Physicalistic:
Batch
Sample of samples?
Homogenous ...
A collection(?)/set(?) of samples produced by the same process.
A uniform body of a material, prepared/produced by the same process.
There can be several batches of the same material.
A batch is produced of a single run of a specific process.
It is expected that experiments performed on samples from the same batch will be similar.
Sample
Fully used in an experiment.
Sample only makes sense in the context of an experiment.
Material -> Batch -> Sample
Data:
Crystal: A material, which can be described by a crystallographic model.
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