menu SIGN IN
Phil Green

Phil Green

author, misLeading Indicators: How to Reliably Measure Your Business

Canada | Professional Services - Business Consulting

You can manage many things without measuring them

Posted over 10 years ago, 0 comments
There is a common saying that “if you can’t measure it you can’t manage it.” Many people mistakenly think the reverse is true, that if they can measure it, or something they call “it,” they can manage it.
Read more...

More circular reasoning on statistical process control

Posted over 10 years ago, 0 comments
After my last post I received a number of comments on the website KPIExperts.  Most of them completely misunderstood my point, and their misunderstanding was so fundamental that rather than reply to their comments individually I decided to write a new post. 
Read more...

Why measurements don’t always bring opposing views together

Posted over 10 years ago, 0 comments
Can measurements resolve opposing views about the truth or falsehood of controversial claims?   That indeed is one of the most important purposes of measurement.  But it does not always work out that way.
Read more...

Circular Reasoning in Statistical Process Control

Posted over 10 years ago, 6 comments
In a Statistical Process Control (SPC) chart, measurements are plotted on a chart with upper and lower “control limits.” The idea is to compare the plotted points with the limits to see if a process is stable, and to identify “special” causes of variation.  The control limits are supposed to indicate when action should be taken to bring the process back towards the mean.
Read more...

Good definitions needed for reliable measurements

Posted almost 11 years ago, 0 comments
The trustworthiness of any measurement depends crucially on the definition of the thing you are measuring.  This in turn depends on having adequate background information to define it. Even apparently simple things can be devilish to define: take on-time delivery. What is on-time? What counts as a delivery? Or try absenteeism. Is an employee ‘absent’ if they called in sick? Or very late? Or only if they don’t show up at all? The answers will vary depending on the particular circumstances of each organization—which is background information is also crucial.
Read more...