Hi Christiane,
Though I am not too sure if I have understood your question correctly , I shall try and attempt to answer it.
Part 1
“Here in Brazil, a matter that came up with the implementation of six sigma process is that not competitive when you have a short time delivery lead time.”
Are you trying to say that the industry that you are in, makes products / services that have a short delivery lead time and Six Sigma may take a long time. Well the answer is that one of the major benefits of the Six SIgma initiative is to Cycle Time reduction without in any way increasing your defect count. An example can be shown here, GE as a company has proved how Six Sigma can be used in different types of industries from making an aircraft engine to manufacturing a light bulb, to providing financial services. The single common thread running across all these being to improve Operational efficiency thereby cutting down cycle time to deliver the product or service
Hope this in some way answers your query
Regards
.
