Having been in senior management for over the last 30 years, this book/tool would have made the operational and strategic decisions, I had to make, so much more precise and meaningful. It provides many tools that allow a manager to acquire a thorough understanding of thier business environment. This book is something every manager should have, on hand, for day-to-day decisions, as well as, longer term strategic decisions. I highly recommend this book and the software that accompanies it.