Flow process chart
The flow process chart is a graphical and symbolic representation of the processing activities performed on the work piece.
When to use it
- It is used when observing a physical process, to record actions as they happen and thus get an accurate description of the process.
- It is used when analyzing the steps in a process, to help identify and eliminate waste.
- It is used when the process is mostly sequential, containing few decisions.
Symbols
| Symbol | Letter | Description |
|---|---|---|
| Ο | O | Operation |
| Ỻ | I | Inspection |
| → | M | Move |
| D | D | Delay |
| ∇ | S | Storage |
- Operation: is to change the physical or chemical characteristics of the material.
- Inspection: is to check the quality or the quantity of the material.
- Move: is transporting the material from one place to another.
- Delay: is when material cannot go to the next activity.
- Storage: is when the material is kept in a safe location.