Principles of Lean

Question 1

Seven principles of Lean

Answer 1

1. Eliminate Waste
2. Amplify Learning
3. Decide as late as possible
4. Deliver as fast as possible
5. Empower the team
6. Build integrity inn
7. See the whole

Question 2

Principle 1: Eliminate Waste

Answer 2

Remove waste that adds no value to
project.

Three types of waste in lean are:

• Waste in service (software/hardware) development
• Waste in project management
• Waste in workforce potential

Question 3

Principle 2: Amplify Learning

Answer 3

Learning is not compulsory neither is survival.

• Full knowledge is impossible,
• need to learn as project is developed.
• Customer should be learning too!
• Use a “scientific” method
• Create hypothesis
• Conduct rapid tests of possible solutions/prototypes
• Compare results
• Implement the best solution

Question 4

Principle 3: Delay Commitment

Answer 4

• Decisions are often made on incomplete or incorrect information
• Delay until the last responsible moment

Benefits:

• More knowledge for decision making
• Leaves options open

Question 5

Principle 4: Empower the Team

Answer 5

• Make decisions as “low” as possible
• Shift from complete documentation to goals and guidelines
• Developers closest to code know the problem best
• Developers can get feedback for personal improvement
• Developers must be experienced in domain

Question 6

Principle 5: Deliver Fast

Answer 6

• Customers change their mind.
• Deliver so fast so they don’t have time to!
• Short release cycles
• Two-four weeks?

Requirements:

• Don’t overload developers with requests
• Remember - No partially completed work

Question 7

Principle 6: Build Integrity In

Answer 7

Perceived Integrity

• Does exactly what the customer wants, even if they don’t know it yet
• What is the problem with this statement?
• Again, continual interaction with the customer
• Conceptual Integrity
• The product/service works smoothly and functions well
• The product/service parts works together

Question 8

Principle 7: See the whole

Answer 8

Optimize the entire service, not just parts

• Short delivery cycles can lead to optimized parts, sub optimized whole
• Don’t have customer overestimate what the product will do