Step 3B: Choosing the Correct Control Chart (Continuous Data)
April 3, 2025
Just like there are many types of discrete data charts available, there are also many types of continuous control charts available. The Six Sigma process methodology prescribes which chart must be used when. The prescription in the case of continuous data points is largely based on sample size. Below is the list of the different…
If the data type that needs to be charted is discrete, then it must fall between one of binary or count types. As the name suggests in case of binary distribution, there are only two possibilities, success and failure, defective and not defective, whereas in the case of count type distribution there may be more…
As we have seen, Six Sigma is an elaborate methodology. It requires time to learn and even more time to successfully implement. However, as we have also seen that there is a golden pot at the end of the rainbow. Countless organizations have transformed their operations based on their Six Sigma capabilities. Nowadays, having processes…
Closing a Six Sigma project is an elaborate exercise. One of the biggest parts of this exercise is the explicit documentation of the project. However given its importance to the projects that maybe executed at a later date, its importance is unquestionable. Here is a checklist of the activities that need to be performed while formally closing a six sigma project.
The most obvious thing to do while closing a Six Sigma project is to ensure that the objectives that were the cause of the project in the first place have been adequately met. The fact that there are numerous stakeholders with varying objectives, ending the project requires getting sign-off documents from all these stakeholders.
For each sign-off, the objectives set up in the Project Charter are reviewed. The achievements of the project team are then viewed in the light of these objectives and a decision is reached upon whether the Six Sigma project has been a success. However, since the objectives have tangible numbers, there is very less scope for politicising and ambiguity.
Six Sigma projects are meant to build process capability. Hence, it is the job of the Six Sigma team to ensure that the results obtained are standardized. This entails ensuring that the results are not dependant on the skill, knowledge or expertise of any workers or managers involved and can work independently of it.
As we have discussed earlier, no process is error proof. No matter how well designed the process, there is always a probability that things can go wrong. It is the job of the Six Sigma team to list down such scenarios where things can actually go wrong and work towards preventing them from happening in real life.
The plans should be documented along with discussing it with the process owner. There must be experts appointed to solve every type of possible problem that the Six Sigma team can foresee.
Every Six Sigma project executed brings with itself a wealth of knowledge. This knowledge may pertain to application of Six Sigma methodology, team building or more knowledge about the process in question.
This knowledge needs to be explicitly documented and stored in the knowledge repository of the organization for re-use.
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