The big management consultancy firms clearly see something in Big Data, which is certainly a concept to align nicely with their typical client engagements. PwC gathered a set of viewpoints in an issue of their Technology Forecast last year, and McKinsey joined in this month with Big Data: the Next Frontier for Innovation, Competition and Productivity. Accenture is taking a slightly different path, both building product (with Appistry) and funding polling through its joint venture with Microsoft, Avanade. As firms that need to be in a position to answer client questions — and to build solutions that meet client needs — PwC, McKinsey and Accenture are perhaps more exposed to the Big Data idea than most. It’s interesting to explore their public documents, and to begin understanding the different ways in which they are attempting to position themselves to current and future clients.