How is DevOps different from traditional Waterfall and Agile development?

Question

Accepted Answer

The three approaches differ in how often software is delivered and who is involved . Waterfall — sequential phases (requirements → design → build → test → deploy). Long release cycles (months/years), heavy handoffs between teams, late feedback. Agile — iterative sprints, short cycles, dev-team focused. Fixes the development side but Ops often remains a separate team with manual handoffs. DevOps — extends Agile principles to operations . Continuous delivery, automated infrastructure, shared ownership of production. Releases happen multiple times per day . Practical view: Waterfall is rigid, Agile is iterative dev, DevOps is end-to-end automated delivery from commit to production. Don't say 'Agile is bad and DevOps is good.' Position them as complementary — Agile fixed the dev side; DevOps extends the same thinking to operations. Waterfall is the actual contrast.