Post by Martin Doerr (13 December 2023)
Dear All,
CRM-SIG put a lot of effort in creating related examples for properties of the same class:
For instance,
- P145: The implementation of the treaty regulating the termination of Greenland membership in EU between EU, Denmark and Greenland 1st February 1985 (E86) separated Greenland (E74).
continues with
- P146: The implementation of the treaty regulating the termination of Greenland membership in EU between EU, Denmark and Greenland 1st February 1985 (E86) separated from EU (E74).
Could be a comment. There are many such examples making together one "frame".
It is very complicated to find these out by browsing!
I propose "[example connects to P146]" and vice versa "[example connects to P145]"
Best,
Martin
Post by Stephen Stead (13 December 2023)
I think that this is a very good signpost. The only possible improvement I can see would need us to number all the examples so we can point to exactly which example is being referred to. Not sure that this is worth the effort?
Rgds
SdS
Post by Martin Doerr (13 December 2023)
Well, I'd say no, someone who cannot spot the matching example, will hardly understand the CRM, isn't it?
But some examples, such as the coordinates of Kastoria, have a didactic purpose that is rather opaque:
The geometric center "of gravity" of the city is in the lake, rather than the built parts. The examples show that centroids cannot be compared automatically, because they are different in various resources, and there is no concept of the size of the feature to infer that the deviation is smaller than the feature size. In contrast, bounding boxes could automatically be compared for overlap or inclusion. The current city further covers completely previous up to the Roman settlement, and was continuously inhabited.
Best,
Martin
In the 60th joint meeting of the CIDOC CRM and ISO/TC46/SC4/WG9 & 53rd FRBR/LRMoo SIG, the group went through with discussing the proposal to connect examples forming a set (they instantiate properties of the same class for instance).
Decision
The SIG decided against linking all examples, it’s too much work for very little gain. On the other hand, in some cases it can be helpful to flag recurring examples, without having to add explanations all the time, like in CRMinf, CRMarchaeo.
Establishing such a practice should be decided on a case-by-case basis, and especially for recurring, complex examples.
Bern, April 2025.