Data quality depends on domain expertise (understanding data and coherences) and data expertise (e.g. technology, data management). Mostly domain experts aren't data experts.
OpenRefine could be a knowledge bridge between data and domain expertise: It is a powerful data tool for domain experts.
We can check and improve the quality of large datasets easily, add and compare data from other sources and find and close data gaps in wikidata - without coding knowledge, scripting or SPARQL but with a lot of techniques like coding experts (and with a graphical user interface).
Each Space at Wikimania 2019 will have specific format requests. The program design prioritises submissions which are future-oriented and directly engage the audience. The format of this submission is a:
Tool or project demonstration: short talks focused on tools