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List of Lean Principles This page keep track and list key Lean principles.

Lean Thinking Principles
From the Lean institute (lean.org)
 * 1) Specify value from the standpoint of the end customer by product family.
 * 2) Make the value-creating steps occur in tight sequence so the product will flow smoothly toward the customer.
 * 3) Identify all the steps in the value stream for each product family, eliminating whenever possible those steps that do not create value.
 * 4) As flow is introduced, let customers pull value from the next upstream activity.
 * 5) As value is specified, value streams are identified, wasted steps are removed, and flow and pull are introduced, begin the process again and continue it until a state of perfection is reached in which perfect value is created with no waste.

Lean Manufacturing Principles
Toyota Way, Dr. Jeffrey Liker
 * 1) “Base your management decisions on a long-term philosophy, even at the expense of short-term financial goals.”
 * 2) “Create a continuous process flow to bring problems to the surface.”
 * 3) “Use ‘pull’ systems to avoid overproduction.”
 * 4) “Level out the workload (work like the tortoise, not the hare).”
 * 5) “Build a culture of stopping to fix problems, to get quality right the first time.”
 * 6) “Standardized tasks and processes are the foundation for continuous improvement and employee empowerment.”
 * 7) “Use visual controls so no problems are hidden.”
 * 8) “Use only reliable, thoroughly tested technology that serves your people and process.”
 * 9) “Grow leaders who thoroughly understand the work, live the philosophy, and teach it to others.”
 * 10) “Develop exceptional people and teams who follow your company’s philosophy.”
 * 11) “Respect your extended network of partners and suppliers by challenging them and helping them improve.”
 * 12) “Go and see for yourself to thoroughly understand the situation.”
 * 13) “Make decisions slowly by consensus, thoroughly considering all options; implement decisions rapidly.”
 * 14) “Become a learning organization through relentless reflection and continuous improvement.”

Lean Product Development Principles
Lean Product Development, Donald G. Reinertsen
 * 1) Take en economic view
 * 2) Actively manage queue
 * 3) Understand and exploit variability
 * 4) Reduce batch size
 * 5) Apply Work-in-progress Constraints
 * 6) Control flow under uncertainty - Cadence and synchronization
 * 7) Get feedback as fast as possible
 * 8) Decentralize control

Toyota Product Development System (Morgan and Liker)
 * 1) Establish customer-defined value to separate value-added activity from waste.
 * 2) Front-load the product development process while there is maximum design space to explore alternate solutions thoroughly.
 * 3) Create a leveled product development process flow.
 * 4) Utilize rigorous standardization to reduce variation, and create flexibility and predictable outcomes.
 * 5) Develop a chief engineer system to integrate development from start to finish.
 * 6) Organize to balance functional expertise and cross-functional integration.
 * 7) Develop towering technical competence in all engineers.
 * 8) Fully integrate suppliers into the product development system.
 * 9) Build in learning and continuous improvement.
 * 10) Build a culture to support excellence and relentless improvement.
 * 11) Adapt technology to fit your people and process.
 * 12) Align your organization through simple, visual communication.
 * 13) Use powerful tools for standardization and organizational learning.

Lean Software Development, Popendieck
 * 1) Focus on Customers
 * 2) Eliminate Waste
 * 3) Keep Getting Better
 * 4) Build Quality In
 * 5) Learn First
 * 6) Energize Workers
 * 7) Optimize the Whole
 * 8) Deliver Fast

Lean startup principles, Eric Ries
 * 1) Minimum viable product
 * 2) Continuous deployment (only for software development)
 * 3) Split testing
 * 4) Actionable metrics
 * 5) Pivot
 * 6) Innovation accounting
 * 7) Build-Measure-Learn