Start Small for Big Data

As in all efforts that deal with large and complex systems,it makes sense to start with simple problems. This HBR article does a good job in making the case.  Obvious, but useful to say.  Still it is not always easy to find the simple solution for a problem.  Something as simple as plotting some data can often be a great place to start, because it makes you look at the basic structure of the data, and its relationship to other data.   Start there.