Slides of my talk at European Commission's Day on "Digitising agriculture and food value chains", November 17th 2017. Talking about the need to facilitate the flow of data in various value chains. Sharing our experience from a big and heterogeneous data vineyard pilot, as part of the H2020 Big Data Europe project. And describing our plans for extending this pilot to demonstrate big data flows in grapevine-powered value chains, as part of the upcoming H2020 Big Data Grapes project that we coordinate.