
119Basic Lean Concepts and Tools– Assessment and Analyze
recovering into storage or waiting. In some cases, we add an extra code to our spreadsheet to track
recovery time. It is also worth noting that recovery time can be reduced, e.g., using non-invasive
surgery techniques. This shows even value-added steps can be improved. Since storage in a process
tends to be where the majority of waste occurs, storage can be dened with more granularity.
BASIC LEAN TOOLS UNDERSTANDING TYPES OF STORAGE
We said earlier that storage can be broken down into more minute detail. There are three types of
storage:
1. RM—raw material
2. WIP—work in progress
3. ...