Oh wow ! I was just trying to articulate exactly this kind of approach and looking for it. I would love to see a coherent approach to data errors and this seems like a step in the right direction.<p>One question - the blog post covers basically debugging the ingestion of data part. My quite usual issue with older data is that at some point, you discover an issue with it (say it's slightly false, but not too much) - so you want to somehow let users know, or allow to select only the data without the issue (but still let them know how much of it they miss) - is this framework helpful in this situation ?