ABSTRACT
Managers and technical professionals claim they spend a major chunk of time each week reviewing and analyzing performance data. An exciting trend in a number of medium and small companies is an approach to reporting performance data called open-book management. The columns typically show performance by month, and perhaps year-to-date statistics. Having data from only the most recent time period makes it difficult to determine trends over time. With many performance measures, it is important to look at changes in trends over a long period of time. This is particularly true with measures that are only collected quarterly or perhaps less often.
