Those of us that build Data Warehouses and Business Intelligence systems for a living have, for too long, focused on the analysis of internal corporate performance indicators, and short-changed the integration of external information that provides the context that leads to knowledge. Yes, we can report units sold, costs and profits, perhaps even ROI; but we have not done all that we can do to describe the relationship between these things and the theatre in which we operate: the stock market, interest rates, monetary exchange rates, the weather, political events, disasters, changing laws and regulations, new competitors appearing and old competitors dying off, etc., etc.
In short, we've been pretty good at answering "what" is happening within our organizations, but not so good at answering "why".
How best to remedy this? Richard Hackathorn does the industry a huge service by describing, in the most pragmatic way, why it is a good idea to take the acquisition and integration of external information with our operational business data very seriously, and he provides a number of pragmatic techniques for exploiting the expanding resources available on the Internet for precisely this purpose.
This is really quite exciting stuff - and my company, along with (I suspect) many others, has actually evolved its business model in order to more fully embrace the potential of some of the ideas expressed within this excellent book; I'm not sure that a more positive endorsement is possible.
Jim Stagnitto, VP & CTO, Questral, Inc.