Lean tools categorize based on their complexity levels. The first level is Yellow Belt, the second level is Green Belt, and the third and most complex level is Black Belt. The following list shows all Lean Green Belt tools that individuals trained at the Green Belt level can apply practically, in accordance with the IASSC Body of Knowledge. Note that the IASSC calls the Green Belt level “Lean Leader”.
- 5 Whys
- Bottleneck Analysis
- Brainstorming
- Consensus
- Continuous Flow
- Flow diagram
- FMEA
- Ishikawa
- Jidoka
- JIT
- Kaizen task-force workshops
- Kanban
- Kano Model
- KPIs
- Layout Planning
- Motivation
- PDCA
- Poka-Yoke
- RCA
- SIC
- SIPOC
- SMED
- Spaghetti diagram
- Stakeholder Management
- Sustainment
- VSM
A trained Lean Yellow Belt is a valuable team member in Lean improvement projects. A Green Belt typically leads small improvement initiatives, while a Black Belt takes responsibility for major projects.
In addition to these Lean Green Belt tools, tools are available at other complexity levels.
Lean tools at the Yellow Belt level are available here.
Lean tools at the Black Belt level are available here.