How Does it Work?
Lean Six Sigma Projects are led by a certified Lean Six Sigma Black Belt. The Black Belt leads a small team of people who regularly work with the business process to be improved. The Black Belt and team report to a project sponsor who "owns" the business process. The Black Belt leads the project and performs the quantitative analysis. The team provides critical information about how the process actually works, its context, data sources and quality, and helps the Black Belt interpret what the results of the data analysis really mean. The team is also instrumental in designing and implementing solutions that will work in the organization and be accepted by colleagues.
The project progresses through five stages:
Define - Customer (internal or external) needs are clarified, the problem to be addressed is defined and scoped,
the team is selected, and a charter is written.
Measure - The team creates a process map of the existing process, and identifies pain points. It also gathers
quantitative data about the process and determines how effective and efficient the process is at creating
its intended products, services, or transactions. Improvement goals are quantified.
Analyze - The team analyzes how the process inputs and steps work together to create the outcomes identified at
the Measure stage. Three main streams of analysis include quantitative analysis (hypothesis testing),
waste analysis, and process principle best practice analysis. Upon completion, the root causes of the
process problem are crystal clear - and often very surprising. The combination of statistical analysis
with front-line insight is unbeatable.
Improve - Project improvement focuses on addressing root causes identified in the Analyze stage. A new version
of the process is created and pilot tested. Innovations and technology are incorporated as appropriate,
with overall simplicity as a key principle. Risk analysis is performed and risks are mitigated.
Control - The team creates a Control Plan for ongoing use by the Sponsor (or his/her designate). Use of the
Control Plan provides ongoing real-time critical information about the new process's performance. It also
provides instructions regarding what to do if the process results begin to drift away from the target. Use
of the Control Plan ensures that the process stays on track and that process customers never
experience poor results.
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