Lou Gerstner

People don’t do what you expect but what you inspect.

Jay W. Forrester

There are two – and only two – kinds of variables in a system dynamics model: levels (or accumulations) and rates (or actions). Once you believe that there are only two kinds of concepts in a system, everything you look at has to be one or the other.

The existence of only two kinds of variables – levels and rates – is true of all … [ Read more ]

James Keebler (author of Keeping Score)

Until customers of measures and owners of measures get together, what gets measured doesn’t necessarily get managed…What gets rewarded gets managed.

Lord Kelvin (British physicist)

When you can measure what you are speaking about, and express it in numbers, you know something about it. But when you cannot measure it, when you cannot express it in numbers, your knowledge is of a meagre and unsatisfactory kind.