Lean, Agile, DevOps - You should be doing them all

Cheat sheet with some of the principles, values, ideals…

DevOps 3 Ways

  1. Systems Thinking

  2. Amplify Feedback Loops

  3. Culture of experimentation and continuous learning

DevOps 5 Ideals

  1. The First Ideal — Locality and simplicity in our code and organization

  2. The Second Ideal — Focus, flow and joy in our daily work

  3. The Third Ideal — Enablement of improvement and achievement

  4. The Fourth Ideal — A culture of psychological safety

  5. The Fifth Ideal — A ruthless and relentless focus on our customer

Manifesto for Agile Software Development

We are uncovering better ways of developing
software by doing it and helping others do it.
Through this work we have come to value:

Individuals and interactions over processes and tools
Working software over comprehensive documentation
Customer collaboration over contract negotiation
Responding to change over following a plan

That is, while there is value in the items on
the right, we value the items on the left more.

Principles behind the Agile Manifesto



We follow these principles:

  1. Our highest priority is to satisfy the customer through early and continuous delivery of valuable software.

  2. Welcome changing requirements, even late in development. Agile processes harness change for the customer's competitive advantage.

  3. Deliver working software frequently, from a couple of weeks to a couple of months, with a preference to the shorter timescale.

  4. Business people and developers must work together daily throughout the project.

  5. Build projects around motivated individuals. Give them the environment and support they need, and trust them to get the job done.

  6. The most efficient and effective method of conveying information to and within a development team is face-to-face conversation.

  7. Working software is the primary measure of progress.

  8. Agile processes promote sustainable development. The sponsors, developers, and users should be able to maintain a constant pace indefinitely.

  9. Continuous attention to technical excellence and good design enhances agility.

  10. Simplicity--the art of maximizing the amount of work not done--is essential.

  11. The best architectures, requirements, and designs emerge from self-organizing teams.

  12. At regular intervals, the team reflects on how to become more effective, then tunes and adjusts its behavior accordingly.

Lean Development Principles

  1. Eliminate Waste,

  2. Build Quality In

  3. Create Knowledge

  4. Defer Commitment

  5. Deliver Fast

  6. Respect People

  7. Optimize the Whole

7 modern principles of LEAN

  1. Optimize the whole

  2. Eliminate waste

  3. Create knowledge

  4. Build quality in

  5. Deliver fast by managing flow

  6. Defer commitment

  7. Respect people

5 original principles of lean

  1. Identify Value

  2. Map the value stream

  3. create flow

  4. establish pull

  5. seek perfection

3 pillars of scrum

  1. transparency

  2. inspection

  3. adaptation

Scrum Core Values

  • Commitment

  • Focus

  • Openness

  • Respect

  • Courage

Kanban Principles

  1. Principle #1 – Visualize Workflow

  2. Principle #2 – Limit Work in Progress

  3. Principle #3 – Focus on Flow

  4. Principle #4 – Continuous Improvement

Kanban Methods

  1. Start with what you do now

  2. Agree to pursue incremental, evolutionary change'

  3. Respect the current process, roles, responsibilities & titles

  4. Encourage acts of leadership at all levels

Kanban Properties

  1. Visualize the workflow

  2. Limit WIP

  3. Manage flow

  4. Make Process Policies Explicit

  5. Improve Collaboratively (using models & the scientific method)