What is your favorite Six Sigma Tool?

What is your favorite Six Sigma Tool?

Posted by Joseph Basala on May 5, 2019 9:32 pm

There is a whole tool kit available within Six Sigma...

What is your favorite Six Sigma tool and why?  It could be your go-to tool or a tool that you think holds the most promise.
Joseph T. Basala ASQ CMBB, CSSBB, CRE, CQE, CMQ/OE, CQA & ASQ Fellow

Re: What is your favorite Six Sigma Tool?

Posted by Scott Sterbenz on May 15, 2019 5:52 am

Joe - For me, it's binary logistic regression.  BLR is a bit of an obscure tool, but it allows for establishing a relationship between an attribute output and either variable or attribute predictors.  I find it useful when there is an unknown specification limit.  For example, when I hold a customer clinic, I can ask the participants whether they are satisfied with the performance of a given feature, or if they would bring the system back for warranty.  I record this as a 1 or 0--the result is binary--they are either satisfied or not (or they will or will not return the system fr warranty).  I can then use the measurements taken on that part or system and determine above or below what value I can guarantee that x% of the customers will be satisfied.  I have been very successful with this tool in DFSS project and also in DMAIC projects.
Best, Scott C. Sterbenz, P.E. ASQ Six Sigma Forum

Re: What is your favorite Six Sigma Tool?

Posted by Joseph Basala on May 20, 2019 9:32 pm

I do like Binary Logistic Regression as well.  It is a very powerful tool.

However, often with two simple tools (process mapping and FMEA) I feel like a Belt can get 50% towards a solution. Obviously some situations are much more complex and require more powerful tools. 
Joseph T. Basala ASQ CMBB, CSSBB, CRE, CQE, CMQ/OE, CQA & ASQ Fellow

Re: What is your favorite Six Sigma Tool?

Posted by Rachel Delisle on May 21, 2019 11:00 pm

I absolutely love a good box plot! I'm a visual learner so that picture of the data really helps me see what is going on.