I was describing good future data practices to a panel considering ocean science needs for 2030, and was asked a good question after the talk: What are the qualities of a 'good' data system?
Hopefully our Guides on MMI give some ideas about that question, but the Guides are really focused on metadata. And they don't put it all in a neat summary.
So here are my proposals for what makes a good data system, with suitable weasel words for the wide array of projects that need data systems.