Lean and six Sigma

Lean process

• Lean is the streamlined manufacturing and production process.
• it has speed
• it removes the wastage.
• it also removes the nonvalue added steps from manufacturing processes.
• it focused on Customers based manufacturing.

Six Sigma process

• Six Sigma is the process to eliminate defects from products.
• it has Accuracy
• Minimizes the tolerances of products.

*Note

Both lean and Six Sigma have the same goal i.e. to improve productivity and remove defects.

source- manufacturing.net

Working process of lean and six Sigma process-

Define

• This is the initiation of the project.
• It is the first stage to define the problem.

Measure

• Measure the current performance of the work process. 
• identify the data and collect it.
• E.g. take the record of processing time of every station, assembly time, waiting time, the number of rejection part per million, etc.

Analyze

• Remove all the irreverent data that is not related to your goal/objective.
• Analyze the data collected from work in progress. These data are very important for companies for the future and to improve quality and performance.
• Identify the number of variables affecting your goal.
• Now categorize the variables on a priority basis so that you can handle one by one.

Improve

• On the basis of analysis, it is required to improve the performance of work.
• Now take the corrective action to eliminate it.
• Re-analyze the result by applying on prototypes.

Control

• Evolute the result and process.
• Define action and make coordination among team members. 
• look at the opportunity for improvement and try to apply on the process.