Re: [dxwg] Possible relevance of FRBR for versioning (#1251)

This is a bit far afield of what I think DCAT versioning is intended to be, but it is an example of defining derivative relationships between datasets. The citation is:

McCusker, J. P., Lebo, T., Chang, C., McGuinness, D. L., & da Silva, P. P. (2012). Parallel identities for managing open government data. IEEE Intelligent Systems, 27(3), 55. http://tw.rpi.edu/media/2012/02/07/d641/EX_ISSI-2011-09-0138.R1_McCusker.pdf

The diagram of relationships (in this case defined by Work, Expression, Manifestation, Item - and I'm not suggesting you should use those entities in your work) is:

<img width="272" alt="frirDiagram" src="https://user-images.githubusercontent.com/1564129/93895818-12985d00-fca5-11ea-91df-98c6c0045a8e.png">
 But the analysis is interesting. I was describing it briefly in an article as:
"In this model, the use of abstraction, expressed information, and physical sources is needed to allow members of the community to combine data from different sources and to determine at what level the sources represent the same information. The authors apply the four WEMI levels (which they refer to as the four FRBR levels of abstraction) to digital information resources. They consider exact copies of files (the same bitstream) to be items of the same manifestation. Different file formats with the same content, such as a CSV file and an Excel file, are different manifestations of the same expression. Different expressions contain the same informational content but the files may differ in having more or less content, yet they are expressions of the same work because they express the same basic data."

Given the structure of DCAT, relationships could occur at different levels of abstraction (resource, dataset, distribution). The question is: how does that affect defining relationships for DCAT? Are there different kinds of versions at different levels? Is it possible to create a small set of easily determined relationships that are the most useful ones?

Sorry for the length and especially if you've already covered this. 

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Received on Tuesday, 22 September 2020 14:37:26 UTC