Question: what are the four main principles of kaizen?
Answer: What you will learn: The four types of Kaizen. ... 
Kaizen Teian: Bottom-Up Improvement. Kaizen Teian describes a form of improvement where people participate to improve their own processes. ... 
Kaizen Events: Defined Improvements. ... 
Kaikaku: Radical Change. ... 
Kakushin: Break-through Innovation. ... 
Finding The Right Tool.