Babushka of value

…product development, in the broadest sense.

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{{{wish full}}}

Goals:

• maximize flow
• minimize transitions and boundaries—only introduce them when absolutely necessary
• maximum cohesion, minimal coupling (and dependancies)

Design Principles:

• done for upstream equals ready for downstream
• downstream defines interface for upstream in collaboration with upstream

Therefore:

{{{therefore full}}}

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Forces:

• flow to ready
• sprint to done
• ready for downstream equals done for upstream

Metaphore unto ready to build is the school system: Nursery School -> Elementary School -> Junior High School -> High School.

In the right conditions and within constraints, items develop, unfold, mature in every phase until they are ready for the next. Items ready for the next phase are done in the current.

In evolutionary stage:	Items are ready when:	Activities to mature until ready:
Nursery School	Any input: wild ideas, brainwaves, anything.	Collect and maybe categorize input.
Elementary School	Item matches product goals, as determined by product owner.	Analysts decompose. User Experience Expert researches context, characteristics and criteria. Business Analyst identifies business alignment needs.
Junior High School	Item matches release goals.	Elaborate item details. Refine acceptance criteria to almost done. Start UE pre-work (wireframes, visual mocks, story boards). Review legal and compliance issues.
High School	Item is aligned with key stakeholders on features, functions and visuals.	Identify candidates for Release Planning and Sprint Planning
Poker	definition of ready, except for planning poker.	Estimate implementation effort Converse and converge on significant estimation gaps
Build	See definition of ready.	Test design Technical design, development and implementation Integration Architectural spikes Technological spikes
Ship	ready to ship, a.k.a. definition of done.	Hardening. Packaging. Publishing.
Deploy	ready to deploy.	For new installs: Purchase application in App Store. For existing applications: Run software update

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