The in-depth analysis of the processes aims to map in detail the different streams of materials and information related to a product or service. This mapping is then broken down into a value-added or Non-value-added process. The challenge is to visualize the differences between the target strategy and the reality to infer from the sources of progress.
3-Mapping the value chain
It is no more or less than the VSM that we know. In relation to the design of the process, we add data allowing us to better understand:
- Information flow
- Manufacturing Time
4-Map Step by step
We will continue the analysis by returning a little more in detail. Each process itself has other processes that themselves have other processes… It is difficult to find a comprehensive rule of the right level of detail, but we do have some good practices:
- Go to the necessary level to identify root causes and problems.
- Never want to describe a whole process.
Depending on the complexity and the subject of our analysis, we will use different tools such as:
- The spaghetti diagram : It allows to represent the movements
- the KPIV/KPOV diagrams of the 6 sigma: If you want to study the impact between the incoming and the outputs of a process, you can use the 6 Sigma analysis method with the help of the process Map, Cause/Effect matrix and the VMEA.
Finally the last stage of the analysis of the processes, the calculation of the efficiency. With the help of all the previous observations, we can distinguish the steps that have added value from the steps that do not have them. So it is easy for us to calculate efficiency.