Summary: Most of the documentation about the Wikibase Lexeme data model has been written before the feature was out. The description of the data model, in particular the visual document, contains examples of ontologies that are not valid anymore, and would deserve some cleaning.

Existing resources:

• https://www.mediawiki.org/wiki/Extension:WikibaseLexeme/Data_Model
• https://commons.wikimedia.org/wiki/File:Lexeme_data_model.svg

This would be useful to: Community, Abstract Wikipedia, Lingua Libre, tool builders, anyone who needs to understand the technical modelling of the data

Subject matter experts (people who could help with providing content): Leszek, other engineers, Denny?