Delivery Performance

3 pages

Accelerate: The Science of Lean Software and DevOps source
*Accelerate: The Science of Lean Software and DevOps* — Forsgren, Humble & Kim
Four Key Metrics (DORA) concept
DORA four key metrics (deployment frequency, lead time for changes, change failure rate, time to restore service); empirical basis (4-year, 23K+ respondents, Accelerate); Lean conceptual basis; cluster analysis; no-tradeoff finding; CABs negatively correlated with both metrics; Goodhart's Law warning; pipeline topology variants; instrumentation; MVD; virtuous cycle mechanism; complementary metrics
Westrum Organisational Culture concept
Ron Westrum's organisational culture typology (pathological/bureaucratic/generative); information flow as core mechanism; Likert measurement with psychometric validation; predicts delivery performance, org performance, job satisfaction; how to improve culture (implement practices first); blameless postmortems; Google Project Aristotle alignment