On the other hand, DMADV focuses on optimizing new processes or products to adhere to Six Sigma standards. It stands for Define, Measure, Analyze, Design, and Verify.
For example, the DMADV approach would be efficient when implementing a new ERP.
Here's a breakdown of all five steps.
Consider all the available information to determine what you have and what you need to achieve. Thus, you'll be able to determine the issue, list the available resources, and clearly define the goals for the project.
Get more information on the project through data collection. You'll also get to measure the project's scope and better understand the issue.
Using your data, explore all aspects of the current situation or issue. Having a deeper understanding of the issue will make it easier to solve.
Using this model for a new project will help you develop a process that results in customer satisfaction.
Test the process you have created to ensure that it meets your customer's needs and efficiently works as you designed it.
Reminder: DMAIC is best for already established businesses, while DMADV works best for a new project or a new business.
Six Sigma tools
Tools are also crucial in the Six Sigma practice. Here are some of the most common Six Sigma methods and tools:
- Statistical process control
- ANOVA (Analysis of variance)
- Gage R&R (Repeatability & Reproducibility)
- Taguchi method
- CTQ Tree (Critical To Quality)
- Control Chart
- Flow Chart
- Check sheet
- Scatter plot
- Pocess mapping
- Pareto Charts
- Cause and effects analysis
- Ishikawa diagram
- Fishbone diagram
What are the Six Sigma levels?
You'll need to source trained practitioners throughout your organization's hierarchy to make Six Sigma happen. Leadership should align the right people with suitable projects to achieve and sustain success. Six Sigma borrows the practice of designating various mastery levels using the concept of belts from martial arts:
A newcomer can start with this most straightforward stage. They:
- Team up with others on problem-solving adventures
- Gain basic knowledge of Six Sigma concepts
The Six Sigma Yellow Belt participant works as a team member and:
- Review improvements
- Grasp DMAIC and other methodologies
Here, the candidate should have at least three years of full-time employment and:
- Six Sigma methodologies skills
- Experience in business transformation projects
- Can manage Six Sigma Green Belt level teams or projects
Members at this stage need to have at least three years of full-time employment, plus:
- Hands-on experience in a critical area
- Completion of at least 2 Six Sigma projects
- Expertise in using multivariate metrics in diverse ecosystems
- Ability to manage various teams
- Ability to train teams
Master Black Belt
To attain a Six Sigma Master Black Belt, a participant should have a Six Sigma Black Belt certification and:
- At least five years of full-time employment
- Completed at least 10 Six Sigma processes
- A portfolio with specific requirements
- Have coached Black and Green Belts
- Develop core strategies
- Hands-on experience as a company Six Sigma technologist
How is Six Sigma a strategy toward operational excellence?
Operational excellence involves everyone working in an organization at every level. Therefore, you should employ the Six Sigma improvement strategy to consider every level's effort into growing the business.
To implement Six Sigma successfully, you can follow the following action plan.
1. Analyze and understand the situation
Involve every team member in understanding the project and how to implement the Six Sigma methodology. With that knowledge, you can make strategic goals contributing to the ultimate goal.
2. Ensure everyone is on board with the Six Sigma methodology
Engage all the members and stakeholders in Six Sigma implementation. Then, explain why it's essential for your business and the roles they will play in each step of the methodology.
3. Explain the processes
Once everyone is reading from the same page, introduce the standard method you'll follow in your organization to reach your goal. Everyone will then know what to do regarding shifts and other processes.
4. Have a common problem-solving approach
There are different ways to carry out a Six Sigma methodology with other processes such as data collection. Although, you need to align the problem-solving approach so that all the stakeholders follow one straightforward process.
5. Monitor performance at every step and set new goals
Every step you make towards problem-solving should bring in some results. So, by monitoring performance, you can identify problem root causes and know how to eliminate them.
6. Make creative and sustainable changes
Integrating new skills into the Lean Six Sigma methodology will be a great way to provide solutions to the process. It will be easy to adapt to the changes and set new goals. The changes will also ensure continuous improvement, especially if you instill it into your company's culture.
7. Ensure your managers are well-skilled
Six Sigma is based on project management and statistics; your managers may not have a statistical background. Therefore, you can organize training for your management team members to ensure they are all on board with the process.
Tip: Operational excellence happens when a company focuses on creating a long-term continuous improvement culture through investing in the proper practices.