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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.

Introduction

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.

The method

1-Draw the perimeter

The first step is to use a SIPOC To have an overall view of the process we are studying.

2-Draw the process

We’ll get a little more into the process detail. For this, using the principles of the VSM, we will identify the different stages of the process.

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
  • Timeout

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.

5-Measuring efficiency

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.

Our tips

A cartography is never done alone.

It is done in the principle of San Gen Shugi : The real place, the actual parts, the actual data.

For the first, take a simple process.

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