Run from Run Charts to Control Charts
Consultants spend a lot of time teaching people how to create run charts. This assumes you’re starting up a new measurement from scratch. Not true. There’s more than enough data laying around to use with control charts which tell you so much more about performance. Here’s why:
“Hi, I’m Jay Arthur, author of “Lean Six Sigma For Hospitals” and QI Macros [software].
“When I attend some of these meetings, people spend a lot of time trying to teach run charts. “Well, when you have fewer than 15 data points, use a run chart.” Well, I want to suggest to you if you don’t have 15 data points, go find some data that does, all right?
