Dora

Eight Accelerate-validated CD capabilities; key empirical findings: config-in-VCS more predictive than code, developer-owned tests, trunk-based development, loosely coupled architecture as the single largest CD lever; shift-left security (DevSecOps); lightweight change approval vs CABs; relationship between CD, culture, burnout, and job satisfaction

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