Cumulative Flow Diagrams (CFDs)

Steady pull, consistent WIP, thin queues, linear Done growth

Devs produce faster than reviewers consume — Ready for Review grows fat

Too many items started at once — In Development dominates, downstream starves

Not enough work entering — low utilization, thin bands everywhere

Work moves in lumps, not flow — queues spike and drain in waves

Lean pipeline with tight WIP — In Development to Done in ~5.5 days