Re: [sdw] BP 10 http://www.bbc.co.uk/ontologies gone (#1328)

Don't under estimate the work involved in keeping URIs persistently dereferenceable. The challenges of "web site migrations" and "domain migrations" are quite well understood, but eventually there are major technological shifts such as the one we're trying to manage at OS, from a triple-store based "linked data platform" to the use of OGC API Features as our "master" source of data & information about the data.

Redirects and proxies can work well, but I'm not convinced they provide a wise approach when handling national sets of millions of feature instances (data items, spatial things). The UK government used to advise than when designing URI sets one considers persistence in the sense of "for at least ten years" - so perhaps it's no coincidence that after data.ordnancesurvey.co.uk has been pretty stable for twelve years it's likely to move in the next couple. The "data." pattern common in linked data 10-15 years is used rather differently in OGC API Features, where it is sometimes given as an example. "data.example.org" is a root, but the URI for an individual feature instance would continue /collections/{collectionId}/items/{itemID}. In our case, we're moving from data.os.uk to api.os.uk/features (with a version number) & from /id/{itemID} to the OGC pattern

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Received on Tuesday, 25 January 2022 10:02:36 UTC