Body Mass Index
BMI is a widely used measure to determine whether you are underweight, normal weight, overweight, obese or morbidly obese. As a measure, it’s not perfect. Athletes, with a higher ratio of muscle mass than the average population, can have high BMIs despite low body fat. But, as much as I would like to claim that my athleticism is the underlying cause of being on the wrong side of the BMI scale, for most of us it is a useful indicator of whether we need to take action to get leaner and the target we should be aiming for. It’s the simplicity of the calculation of BMI and having clear targets that makes it so useful. We know that we should do something and we know what we should aim for.
Service operations and dieting
Introducing latent capacity – the BMI of operations
An aside on percentiles
For those whose school mathematics was some years ago, a reminder on percentiles. Let’s imagine that I have the productivity for a team over the last 100 days. It might look like this:
|Day 1||Day 2||Day 3||Day 4||Day 5||Day 96||Day 97||Day 98||Day 99||Day 100|
I now -re-arrange the data in ascending order from the worst day to the best day
|Worst Day||2nd Worst Day||3rd Worst Day||4th Worst Day||5th Worst Day||5th Best Day||4th Best Day||3rd Best Day||2nd Best Day||Best Day|
To get the 85th percentile I simply count up 85 days from the bottom to the top. On 14 days I will have had better productivity and on 84 days, worse.
Back to latent capacity – the BMI of operations
Latent capacity – what is a healthy weight?
Is my outsource provider doing a good job?