How to Create Useful Stoplight ChartsBy CIOinsight | Posted 03-29-2004
If your decision-makers prefer numerical scoring, you can also use stoplight charts as a color-coded scorecard. To do this, assign a base weight for each of the issues (the most essential issues should weigh no more than ten times the least important). Multiply the base rate for each issue by the color: 3 for green, 2 for yellow, 1 for red. Add up the raw scores and calculate the average (number of points received/total number of possible points x 100).
Needless to say, don't share your stoplight charts with vendorsor the game will be up.
To download an example of a Stoplight chart,