If you have been reading this book sequentially, my hope is you easily followed the preceding performance analysis cycles. In a way, it is a broad review of the key aspects of this book. Each cycle involved conducting an OraPub 3-circle analysis, understanding Oracle internals, performing an ORTA, and anticipating the solution's impact. The following are the key points:

* Spot-on diagnosis resulting in very specific and targeting changes. There should be no question about how we arrived at our recommendations.

* Each recommendation was accompanied with an anticipatory impact shown both graphically and numerically. Even without doing any predictive mathematics, the anticipated performance situation change was clearly evident when presenting the response-time curves, further building consensus around the recommendations.