Lean Development Principles

Type: Principles
Sources: See: http://www.shmula.com/340/lean-for-software-interview-with-mary-poppendieck
Chris's article on InfoQ

Principles and Notes

P1: Flow (or low inventory, or just-in-time) (inventory DEFINED AS something partially done)

P2: No Workarounds, problem exposure
Note: if you encounter problems, solve them, don't take detours. This may mean you have to stop what you are doing.

P3: Eliminate Waste (waste DEFINED AS {something without value to the user, work partially done, extra feautures you don't need right now, stuff that causes delay})

P4: Delayed Commitments (DEFINED AS idea of scheduling decisions until the last moment when they need to be made, and not making them before that, because then you have the most information. — Preston Smith)
Cite: "Never make a decision early unless you know why." — Chris Matts

P5: Deliver Fast (DEFINED AS being able to quickly release software. You need proper procedures for that, like {excellent testing procedures, automated testing, stuff that is disjoint from each other (so as you add features you don't add complexity)}
Note: A rigid process menas less choices you have to make every day. Less choices mean more output. Routine enables innovation where it’s most valuable.

Quotes

"Never make a decision early unless you know why." — Chris Matts

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