Nick Carroll

Lean Principle 1: Eliminate Waste
Chinese Proverb: If the roots are not removed during weeding, the weeds will grow again when the winds of Spring blows.
Interpretation: In other words, to solve any problems the source of the problem must also be dealt with. Therefore it is essential to finish a task thoroughly or the effort would be wasted.

Lean Principle 2: Create Knowledge
Chinese Proverb: I hear and I forget; I see and I remember; I do and I understand.
Interpretation: When you create knowledge share it, but share it effectively through experiential learning and involving people collaboratively.

Lean Principle 3: Build Quality In
Chinese Proverb: Better a diamond with a flaw than a pebble without.
Interpretation: Use Test Driven Development and automated testing to ensure quality. Tests help to quickly identify any side effects or defects when you change the code base, which gives you more confidence in the ongoing quality of the product.

Lean Principle 4: Defer Commitment
Chinese Proverb: A journey of a thousand miles begins with a single step.
Interpretation: Abolish the idea that it is a good idea to start development with a complete specification. Like a journey of a thousand miles you gain more confidence in the direction you are heading with each step that you take.

Lean Principle 5: Deliver Fast
Chinese Proverb: One who rides a tiger must continue to go fast.
Interpretation: Companies that focus on speed of delivery and superior quality have a competitive advantage.

Lean Principle 6: Respect People
Chinese Proverb: Like the Eight Immortals crossing the sea, each one displaying his/her special feats.
Interpretation: A diverse team of talented people that can work together can achieve any goal that they are mutually committed to.

Lean Principle 7: Improve the System
Chinese Proverb: A spark can start a fire that burns the entire prairie.
Interpretation: Understand the entire value stream, and don’t ignore seemingly minor problems as they can spread.