The very nature of EDI and other forms of trading data is that it is to be shared. But as the volume of transactions grows, the details of individual transactions becomes less available. As trading transactions become part of what we now know as 'big data' the old tools to deal with these details simply are not sufficient to deliver meaningful information.
Visibility is a funny thing. If we look in a certain direction and see everything we want to and expect to see, then we are able to focus on the results we find. But there are plenty of times we look and don't see, or look and don't see what we don't expect... or can't see beyond a certain range, and therefore don't know what we don't see. I know, it gets complicated.