Which Improvement Methodology Should I Use?

Trying to decide which improvement methodologies to implement in any business can be a daunting process. Unless you are an expert in the continuous improvement field, it is difficult to cut through the hype to understand what is required to deliver the best results in an organization.

Decision Tree

Below is a decision tree flowchart that can help businesses determine whether to use Lean tools or Six Sigma methodologies for their improvement efforts. This decision tree is based on the nature of the problem, the type of process, and the desired outcome.

Here's a typical decision tree flowchart for choosing between Lean and Six Sigma methodologies:

Here's how to interpret the decision tree:

1. If the problem is primarily related to process instability which will require the the need to focus on and reduce process waste to improve flow, and increasing throughput efficiency, Lean tools and methodologies would be more appropriate.

2. If the problem is primarily related to product quality which requires a need to identify and reduce process variation to improve quality, and reduce the number of defects, Six Sigma tools and methodologies would be more appropriate. A reduction in defects will increase the throughout or process velocity and allow the implementation of procedures to monitor and track quality performance.

3. If the problem involves both process instability and product quality then it will require a combination of reducing process waste and variation in product quality. A combined Lean Six Sigma approach, which integrates the principles of both methodologies, might be the best solution.

4. If the problem does not fit into any of these categories, it's recommended to reassess the problem and desired outcome to determine the appropriate improvement method.

It's important to note that this decision tree is a general guideline, and the specific tools and methodologies used may vary depending on the organization's needs, industry, and the nature of the processes involved.

Training Requirements for Improvement Methodologies

One thing to keep in mind are the differences in the training requirements for each improvement methodology. The more complex the requirements for each methodology, the longer the training period.

Lean Training

Lean training can range from basic introductory courses to more advanced programs, depending on the desired level of expertise.

Six Sigma Training:

Six Sigma is a data-driven approach for improving processes by reducing variability and defects. Six Sigma training involves:
Six Sigma certifications are typically offered at different belt levels, such as Yellow Belt (basic), Green Belt (intermediate), and Black Belt (advanced).

Lean Six Sigma Training:

Lean Six Sigma combines the principles and tools of both Lean and Six Sigma methodologies.
Lean Six Sigma certifications usually follow the belt system (Yellow, Green, Black Belt), with Black Belts having the highest level of expertise in applying the combined methodologies.

The training requirements and duration can vary based on the certification level, the specific organization or institution offering the training, and whether it's conducted online, in-person, or through a combination of both. Additionally, some organizations may require practical project experience or mentoring as part of the Lean Six Sigma training and certification process.

Categories: : Training