Posts Tagged ‘hypotheses’

Innovating With Lean Six Sigma

Sunday, January 8th, 2012

In the past I have argued that Lean Six Sigma has its limits and that care should be taken when applying it to innovation. My recommendation was based on observations that organizations which tried to do this essentially quashed innovation by trying to measure innovation using the kind of metrics used for operational processes. I concluded that the attempt to measure creativity as if it were a process was a misapplication of Lean Six Sigma that practitioners should avoid.

InnovationTrue enough, but not the whole story. The fact is that when I look at what my clients do with Lean Six Sigma, and review projects from students, I can see that they are, in fact, innovating. In Phase I, when companies begin Lean Six Sigma, it is usually viewed as an initiative and the first efforts focus on creating a culture where change is possible, organizing an infrastructure for change, training a cadre of part- and full-time change agents, and pursuing projects chosen to move the organization towards its vision. This sets the stage for innovation. The real transformation here is in the way people in the organization think, specifically:

  • They are fact and data driven. Opinions are considered the source of hypotheses to be tested, not absolute truth. The change agents have the tools they need to rigorously test these hypotheses.
  • They are customer focused and they know how to identify the voice of the customer. This gives them insights into customers needs that go well beyond what customers explicitly say their needs are.
  • They think of organizations as processes as well as functions. They understand that functions exist to serve stakeholders and enable core processes.
  • They understand variation differently than their untrained counterparts. They know that some variation demands an immediate response, but other variation requires system changes. They know how to tell one type of variation from the other.
  • They think of results as stemming from systems rather than individuals.
  • They know that outcomes–both wanted and unwanted–are caused, and they know how to drill down to these causes. I.e., they understand that processes are transfer functions that transform inputs into outputs.
  • They understand the importance of focusing on the few critical to quality drivers, and how to identify them.
  • They know how to organize people for change.

By design the time spent as a full-time change agent is limited. Black Belts serve their terms and return to the organization in other roles.  As time goes by these Lean Six Sigma change agents begin to change the organization’s DNA. Phase II occurs as the culture change takes hold and the change agents, now in key leadership positions, see the Lean Six Sigma approach as the best way to lead the organization towards its vision. They see that they can create new and innovative ways to serve their customers’ latent needs based on the intimate knowledge of the customer and the insights gained using Lean Six Sigma on a smaller scale. They better understand the organization’s capabilities based on experiences learned during the deployment of the initiative. Lean Six Sigma moves far beyond discrete improvement projects and becomes the  framework for leading the organization as a whole towards its vision.

Lean Six Sigma also teaches leaders a new way to lead. Their involvement in defining the organization’s core processes and enabling functions, identifying process owners, finding opportunities for improvement linked to their strategies, defining the drivers of these opportunities, selecting relevant metrics for the drivers, and linking the metrics to activities throughout the organization (including but not limited to Lean Six Sigma projects,) gives them a new way to get things done.

ArtworkThe combination of a new way of thinking, intimate knowledge of the customer, a culture that embraces and expects change, and a powerful new way to lead, makes it possible for the leadership to bring together disparate parts of their organization all focused on a single purpose: wowing the customer. In short, innovation. This is not the aforementioned clumsy and ill-advised attempt to measure the unmeasurable or to “manage the innovation process,” it is an inspired expansion of the scope of Lean Six Sigma from a purely operational improvement tool to a purposeful search for innovative improvement opportunities. It is the application of the core principles of Lean Six Sigma to the  problem of creating a resilient organization that not only responds quickly to changing customer needs and competitive pressures, but also improves the human condition by creating products and services never before conceived.

In summary, Lean Six Sigma becomes the springboard for continuous innovation. It’s a natural extension of the idea of continuous improvement.

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Six Sigma Project Guidelines in Plain English

Thursday, April 30th, 2009

Define the project

In this phase you will select a good project and describe it in detail. A good project is one that will have an impact on something important to the organization, requires the Six Sigma skill set, and has a good chance of succeeding. To determine this you need to link your project to the goals of your leadership; make sure the project isn’t too large to be manageable or too small to be meaningful; is authorized by an appropriate sponsor; and is well planned. You will form a team to work with you. (From this point on whenever the word “you” is used, it refers to your team.) To describe your project you will draw a picture of the process your project will address, identify the customers for your project and determine what they want from the project, and qualitatively determine what will drive the project’s results.
Validate the measurement system and get the baseline

In this phase you will make sure that you can measure the process and the project outcomes. You will operationally define the drivers by identifying how to measure them and you will gather data to determine the process baseline. The baseline is how the key project outcome metrics and drivers have performed in the past and are performing now. You will link the driver data to the outcomes to help you determine which drivers are likely to be the most important (this is called stratifying the data.) You will look at how well other organizations do on your project outcome measures and you will use this information to set goals for the outcomes.

Identify key levers (Xs) that drive outcomes

You will sharpen your focus by drawing a detailed picture of the process. Using the map and the information from the previous phase you will think about what causes the outcomes and the drivers to vary. You will convert your ideas into hypotheses that can be tested scientifically. You will collect data and analyze the data to test your hypotheses and to create mathematical models of cause and effect. You will use the models to determine which drivers need to change to achieve your goals for the outcomes. You will analyze the cost of changing the drivers.

Determine improvement strategy

Using the cost analysis and performance the models you will set goals for the drivers. You will come up with creative ways to achieve these goals and create plans for implementing these changes. You will look at how the plans could fail and take action to reduce the risk of failure. You will try your plan on a small scale to test your plan. For the risks that can’t be eliminated, you will develop contingency plans.

Make permanent improvements

You will create standard operating procedures for the new process and you will work with the process owner to implement the changes. You will create a set of measurements that the new owner will use to monitor the new process. You will hand the process over to the owner. Periodically you will check back with the owner to provide assistance and to confirm that the project’s goals continue to be met.

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