The Problem Statement: Is it necessary in Lean Six Sigma?
"If I had 1 hour to save the world, I would spend 55 minutes to find the problem and 5 minutes to think of a solution."
- Where does this occur?
- During the whole process, the bottles ruptured when the bottles were filled and sealed.
- When did it happen?
-The rupture occurs randomly without a specific moment.
- How does it work?
-The bottles that are used after filling and when clamped are blasted.
- What is the course?
-The issue must be with the pressure or the temperature since the bottles were blasting.
- Who is causing the problem?
-The problem has to be the quality of the bottle or the sealing machine, causing stress.
- Why does it happen?
-The used bottles cannot resist pressure when the bottles are sealed.
Generally, 5 Whys analysis is the most commonly used tool for finding the exact problem.
Problem statement acts as a driving factor in many projects including Lean Six Sigma Projects. A Lean Six Sigma project involves the following steps:
The five phases of the project are interconnected, following the waterfall model.
The Waterfall model is segmented into different stages of a project. Each phase relies on the results from the earlier process. As mentioned above, the driving force of a project is the problem statement.
At this stage, the problem is defined. The defined problem is framed in the form of a declaration called the problem statement. Consider the drink manufacturer mentioned earlier. The organization has a problem, and it was cited. Now, let's see how the problem statement looks;
"The company's packing process should aim to reduce bottle disintegration for the process to be smooth and efficient."
- Measuring the ongoing processor performance.
- Identifying the units of measurement.
- Develop the data collection plan.
- Describe the problem based on data collected.
The problem statement made at the "define" stage is the basis for all of these measurements.
- It should neither be a statement of the Vision and Mission of the company nor any philosophy.
- A problem statement should be brief and clear.
- A problem statement should be specific and measurable.
- The context must always be made clear.