The flow of linked data information is dependent that systems are coordinated and good controlled change management exists plus changes done need to be visible for the user. Compare [[ https://www.wikidata.org/w/index.php?title=Q6339160&action=history | Wikidata version history ]]
* eg. Gunnar Wennerberg looks like wrong connected in Europeana...
* [[ https://www.europeana.eu/portal/en/explore/people/152204-gunnar-wennerberg.html | Europeana ]] Gunnar Wennerberg
{F31477128,width=900} Gunnar Wennerberg 1817-10-02 - 1901-08-24 = Wikidata [[ https://www.wikidata.org/wiki/Q1388588 | Q1388588 ]] = [[ https://en.wikipedia.org/wiki/Gunnar_Wennerberg | en:Wikipedia Gunnar Wennerberg ]]
* is said in [[ https://www.europeana.eu/portal/en/record/916106/vbg_object_VM15770.html?l%5Br%5D=1&l%5Bt%5D=19 | Europeana to have created VM15770 ]] same as
* http://kulturarvsdata.se/vbg/object/VM15770 RDF
* in the RDF file it says http://kulturarvsdata.se/vbg/object/html/VM15770
* that is redirected to [[ https://digitaltmuseum.se/011025171260 | digitaltmuseum 011025171260 ]]
* the RDF of the object [[ https://api.dimu.org/artifact/uuid/A97FA18C-5699-48EA-865F-2E57AD6AE170 | A97FA18C-5699-48EA-865F-2E57AD6AE170 ]] identifies "Wennerberg, Gunnar" as the producer and he gets an id=38286 and UUID = 0C0B6773-8CAE-4D9E-90A0-A1685615D34D
{F31477894}
This object is created at the Gustavsberg porcelain fabric and has a person associated with it
* **text string Gunnar Wennerberg**
* id=38286
* UUID = [[ https://digitaltmuseum.se/search/?aq=name%3A%220C0B6773-8CAE-4D9E-90A0-A1685615D34D%22 | 0C0B6773-8CAE-4D9E-90A0-A1685615D34D ]]
that I guess is **not** entity "[[ http://data.europeana.eu/agent/base/152204 | agent/base/152204 ]]" Gunnar Wennerberg = [[ https://www.wikidata.org/wiki/Q1388588 | Q1388588 ]] instead it looks more a Gunnar Wennerberg who was the "leader" at Gustavsberg porcelain fabric called Gunnar Wennerberg see Swedish Wikipedia article [[ https://sv.wikipedia.org/wiki/Gunnar_G:son_Wennerberg | Gunnar_G:son_Wennerberg ]] and Wikidata item [[ https://www.wikidata.org/wiki/Q6339160 | Q6339160 ]]
* Graph [[ https://w.wiki/DwH | Gunnar Wennerberg Q6339160 ]] / is not an Europeana entity
* Graph [[ https://w.wiki/DwJ | Gunnar Wennerberg Q1388588 ]] / [[ https://www.europeana.eu/api/entities/agent/base/152204.json?wskey=apidemo | Europeana entity 152204 ]]
{F31477162,width=1200}
**TODO** Define a change process for errors like this that can track changes needed between more platforms/sources
# Problems I see
# **Text string at [[ https://digitaltmuseum.se/011025171260 | Digital museum Gunnar Wennerberg ]]** not referencing an entity at Digital museum/[[ https://kulturnav.org/ | kulturnav.org ]]
# kulturnav.org is the linked data layer that should address **text strings errors** as Gunnar Wennerberg
# the mentioned object above is from "Värnersborgs museum" that I have not find a dataset for [[ https://kulturnav.org/ | kulturnav.org ]]
# **TODO** [[ https://digitaltmuseum.se/owners/S-VM | tell Värnersborgs museum ]] [[ https://mail.google.com/mail/u/0/?view=cm&fs=1&tf=1&source=mailto&to=vanersborgsmuseum@vgregion.se | email ]] to create a linked data object for Gunnar Wennerberg at [[ https://kulturnav.org/ | kulturnav.org ]]
# kulturnav.org has him defined in two datasets from
# [[ https://kulturnav.org/4c1319c2-a30a-43e7-a3d5-05038935dcfb | LSH ]]: "Gunnar G:son Wennerberg [sv] - Deprecated" [[ https://kulturnav.org/5c50981c-bc91-4c54-9b23-35ec2d52e431 | 5c50981c-bc91-4c54-9b23-35ec2d52e431 ]]
# [[ https://kulturnav.org/c6c61847-7ad8-41f3-8149-f7137175bce7 | Swedish Nationalmuseum ]]: "Wennerberg, Gunnar G:son (1863 - 1914)" [[ https://kulturnav.org/2f04d1b8-fb0e-4a67-9189-e531b64f5cd3 | 2f04d1b8-fb0e-4a67-9189-e531b64f5cd3 ]]
# somewhere a mapping is done from text string "Gunnar Wennerberg" to [[ http://data.europeana.eu/agent/base/152204 | agent/base/152204 ]] that is **wrong**
# **TODO**: understand why and unlink it in Europeana
# **TODO** changes like this need to be seen in Europeana version history of changed object compare [[ https://www.wikidata.org/w/index.php?title=Q6339160&action=history | Wikidata version ]]
# on the Europeana html page there is an id and a link to RDF [[ http://kulturarvsdata.se/vbg/object/VM15770 | kulturarvsdata: VM15770]] that should be to a human readable page
# **TODO** speak with kulturarvsdata that they should implement [[ https://en.wikipedia.org/wiki/Content_negotiation | content negotiation ]] and deliver the [[ https://digitaltmuseum.se/011025171260 | html page ]] for users in Europeana following the link [[ http://kulturarvsdata.se/vbg/object/VM15770 | kulturarvsdata VM15770 ]]
# Changes decided needs to be reflected and propagated to other platforms like Wikidata, the Europeana aggregator... the local museum/archive
# compare [[ https://tools.wmflabs.org/wikidata-todo/rcvis.html | Wikidata Change Stream ]] and [[ https://www.mediawiki.org/wiki/API:RecentChanges | API:RecentChanges ]]
# how it used by e.g. Google see [[ https://twitter.com/salgo60/status/1039846313888833536?s=20 | tweet ]]
# SPARQL for finding merged objects in Wikidata [[ https://twitter.com/salgo60/status/1171187676310949889?s=20 | tweet ]]
**Nota bene** from the Linked data we can see that the correct Gunnar Wennerberg is the son of the one used in Europeana
* [[ https://tools.wmflabs.org/family/ancestors.php?q=Q6339160&lang=sv | Family Tree from WD ]]
{F31477158,width=500}
=== Misc ===
Wikidata search for works that are likely in the public domain 2020 and if they are an Europeana Entity or not i.e. they are candidates to be added to Europeana as entities
* [[ https://w.wiki/E3L | searcb in Wikidata for people died in 1949 sorted by number of articles in Wikipedia ]]
{F31478884,width=900}