What information does a cumulative flow diagram provide?

Question

Options

• AThe cycle time system information which starts the implementation
• BThe self-assessment information for the teams
• CThe data for the team to identify current bottlenecks
• DThe derived predictability data for the team

• B
  7% (2)
• C
  89% (24)
• D
  4% (1)

Explanation

A Cumulative Flow Diagram (CFD) visually tracks work items moving through workflow stages over time, making bottlenecks immediately visible as widening bands in a particular stage - this is precisely why C is correct. When a stage's band grows thicker, work is accumulating there faster than it's flowing out, signaling a bottleneck the team must address.

Why the distractors are wrong:

• A - CFDs don't show cycle time directly, nor do they "start" implementation; that's more associated with sprint planning or kanban triggers.
• B - Self-assessment is a team retrospective activity, not something a CFD provides.
• D - While CFDs can loosely inform forecasting, "derived predictability data" is more associated with velocity charts or burn-down/burn-up charts.

Memory tip: Think of a CFD as a "traffic flow map" - just like a highway traffic map shows where cars are piling up (bottlenecks), a CFD shows where work items are piling up in your workflow.

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