On Wednesday 20 September 2017, Frederik Ramm wrote: > > If the Wikidata ID can be fetched automatically based on the > Wikipedia tag, can we delete the Wikipedia tags from everything that > has Wikidata afterwards because it is redundant?
This idea stems from the widespread view that a wikipedia article, a wikidata item and an OSM feature refer to the same real world entity just because they reference each other. This is not generally the case - and it can't be since what makes something a certain feature with certain tags in OSM differs fundamentally from what constitutes a certain class of objects in wikidata or what a certain wikipedia article describes. Simple example: The Faroe Islands are both a country: http://www.openstreetmap.org/relation/52939 and an archipelago: http://www.openstreetmap.org/relation/3067431 in OSM which are represented as separate features obviously. Both reference the same wikidata item and all the blind automated name adding activities based on wikidata will not differentiate between names that apply to the archipelago and names of the country (which are not necessarily always the same in all languages). It is best to regard the wikidata and wikipedia tags in OSM as 'related features' rather than identical objects. These provide useful sources to research additional information (in particular wikipedia articles often link to additional sources) but you should never try to fix or add something in OSM - be that a name tag or coordinates - based purely on the assumption that the wikidata object referenced via tag is the same as the OSM feature. -- Christoph Hormann http://www.imagico.de/ _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
