Category Archives: Project Management

Don’t like the data? Throw it out!

One of the first tasks our Black Belt students are asked to do when completing a project is collect data over time and create control charts for the primary output metric.  The purpose of these control charts is to establish baseline performance, and to determine if the process is stable. One of my students is […]

Economic Impact and Project Selection

Our Six Sigma Green Belt course includes a lesson on project selection.  Students are tasked to identify three or more potential improvement projects and make estimates of the cost to plan and execute the projects in dollars as well as the economic impact of completing the projects in dollars.   They then must explain which project […]

To Transform Data, or Not to Transform, That is the Question!

In a previous article in this series I discussed whether or not to transform data that is non-normally distributed in order to make the data normally distributed.  In that article I stated the following: “Data that follow a distribution that is either not symmetric or that is symmetric but not bell shaped are said to […]

The SIPOC Diagram – A Basic Process Mapping Tool

One of the first steps in any improvement project is to describe the current process using a map of some sort.  One basic mapping tool is the Supplier-Input-Process-Output-Customer diagram, commonly referred to as a SIPOC diagram.  Another commonly used tool is the cross-functional process map. Both of these tools are important first steps in understanding […]

68. Evaluating Attribute Inspectors Using Attribute Agreement Analysis

We typically think about the reliability and reproducibility of a gage in the context of measuring some characteristic using continuous (or variable) data.  Gage R&R studies conducted on this type of data are an application of the Analysis of Variance (ANOVA) method.  We evaluate how much variation is introduced by the people using the gage […]

Increasing Your Personal Power as a Project Manager

In order to earn the Six Sigma Black Belt Certificate, our students are required to plan and execute a real world project that results in measurable improvement.  To help them to be more successful, I challenge them to find ways to increase the amount of personal power that they have as the manager of their […]