“Data is of course important, but I put greater emphasis on facts.”

Taiichi Ohno

观察一个流程，记录实际发生的情况。

“Learning is not compulsory; it’s voluntary. Improvement is not compulsory; it’s voluntary. But to survive, we must learn.”

W. Edwards Deming

写下一个假设，明确什么证据会改变你的判断。

“It’s easier to act your way to a new way of thinking than to think your way to a new way of acting.”

John Shook

尝试一个小改动，检查结果后再扩大应用。

“there is no kaizen without standards.”

Taiichi Ohno

让当前最佳方法清晰可见。

“Without theory, one has no questions to ask. Hence, without theory, there is no learning”

W. Edwards Deming

明确预期，再进行验证。

“there is no maintenance of standards without kaizen.”

John Shook

有了更好的证据，就复查标准。