As we have previously covered on this blog, the primary purpose of Lean Six Sigma (LSS) methodology is to eliminate waste and reduce variation in manufacturing, service and design processes, thus improving overall production quality and efficiency. However, when implementing Lean Six Sigma into an existing process, it is important to understand every detail—part of the Define phase of the Define-Measure-Analyze-Improve-Control (DMAIC) method. One of the most effective ways of understanding DMAIC is to create a Six Sigma process map. The Purpose of a Six Sigma Process Map When working with a Lean Six Sigma project team comprised of six, ten, fifteen or more people, it is likely that each member of the team will have a different idea of how a process works and what can be improved. The purpose of a process map is to work together to create a common understanding of the process and how it should work. Key benefits of this exercise include:
Creating a Six Sigma Process Map When creating a process map, keep in mind that the map will resemble a flowchart depicting the start of the process, the middle steps, and the end—or desired outcome—of the process. The map may be a high-level overview, or much more detailed map that includes sub-steps for each major element. The type of process map you choose will depend on the complexity of your project, but each map should be completed as follows: Determine the process boundaries Where does the process begin and end? Using an emergency room as an example, the desired outcome may be to shorten wait times for patients. In this case, the starting point could be when the patient arrives and fills out their paperwork, and the end would be when the patient is discharged. List all the steps in the process In our emergency room example, the steps would include greeting the patient, having them fill out intake forms, entering the information into the computer system, and having the patient see the triage nurse. List the inputs and outputs associated with each step—the items or data that are received (input), and whatever should result from that step (output). Place the steps in order Be sure to arrange the steps in order of how the current process works to make it easier to identify areas for improvement. Utilize the right symbols Most Six Sigma process maps feature the same set of symbols, and each symbol represents a different action or point. Draw these symbols around each step of the process and be sure the entire team understands the meaning of each symbol. The most common symbols and their meanings are as follows:
Check your work Review the map to ensure every step of the current process is listed and described correctly. Have someone outside the project team—but involved in the process—to analyze the map from their perspective to make sure nothing is missing. Making the Most of the Six Sigma Process Map After creating the process map and checking it for accuracy, it’s time to take the most valuable step: improving the process. Everyone on the team should analyze each part of the process and ask questions about how it can be improved. Is there an overarching problem with the entire process? Are there steps that are unnecessarily complex—or unnecessary altogether? What would the ideal process look like? The process map can help the project team visualize each of these questions, enabling them to better reduce waste and continually improve the process—which is the heart of Lean Six Sigma methodology. Purdue University is one of the best university among the universities offering six sigma certification online in the United States. About Purdue’s Online Lean Six Sigma (LSS) Certificate Program
Purdue University offers comprehensive online Lean Six Sigma (LSS) certificate programs designed for working professionals with varying levels of Lean Six Sigma experience. The online Lean Six Sigma certificate courses prepare professionals to satisfy the immense demand for Lean expertise, skills and certification. Purdue offers the following courses 100% online:
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