House of Lean
The House of Lean is SAFe's overarching values framework, depicted as a building: the roof is 'value' (the goal), the four pillars are respect-for-people-and-culture, flow, innovation, and relentless improvement, and the foundation is leadership. SAFe positions Lean as the underlying philosophy from which Agile practices derive.
The House of Lean is a teaching artefact — it shows up early in every SAFe training to anchor practices to principles. The substance behind it: every SAFe practice (PI Planning, WSJF, Lean Budgets, Inspect & Adapt) can be traced to one of the four pillars. Critics argue the framework is a rhetorical scaffold around what's effectively a process methodology; defenders argue the Lean grounding is what distinguishes SAFe from project-management-with-Agile-words. Either way, internalising the House of Lean is the difference between an organisation that practises SAFe ceremonies mechanically and one that uses them as means to Lean ends.
Related terms
- SAFe (Scaled Agile Framework)
The Scaled Agile Framework (SAFe), created by Dean Leffingwell in 2011, is the most-adopted methodology for applying agile practices at enterprise scale (typically 100+ engineers).
- Built-in quality
Built-in quality is the SAFe principle that quality is engineered into the product as it's built — through test automation, pair programming, continuous integration, code review, definition of done — rather than inspected in afterwards by a separate QA phase.
- Value stream
A value stream is the end-to-end sequence of activities that delivers a product or feature to a customer.