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cumulative flow diagram

A time-based chart that cumulatively displays how many features are done, how many are in each in-progress state, and how many remain in the backlog.

Key Points

  • Shows cumulative item counts per workflow state (Backlog, In Progress stages, Done) across time.
  • The vertical thickness between colored bands represents WIP; widening bands signal bottlenecks.
  • The slope of the Done band reflects throughput; steady, parallel bands suggest stable flow.
  • Supports forecasting completion, monitoring queues, and guiding WIP limit and process adjustments.

Example

A Kanban team tracks features weekly. Their cumulative flow diagram shows the Testing band growing faster than others while the Done band flattens. The team adds a tester and limits items entering Testing; over the next two weeks the Testing band narrows and the Done band steepens, restoring predictable flow.

PMP Example Question

Which artifact best visualizes completed features over time along with items in each intermediate state and in the backlog to identify bottlenecks?

  1. Sprint burndown chart
  2. Cumulative flow diagram
  3. Gantt chart
  4. Velocity chart

Correct Answer: B — cumulative flow diagram

Explanation: A cumulative flow diagram plots cumulative counts by state (Backlog, in-progress stages, Done) over time, revealing WIP, bottlenecks, and throughput. The other options do not show all states simultaneously.

Advanced Project Management — Measuring Project Performance

Move beyond guesswork and status reporting. This course helps you measure real progress, spot problems early, and make confident decisions using proven project performance techniques. If you manage complex projects and want clearer visibility and control, this course is built for you.

This is not abstract theory. You’ll work step by step through Earned Value Management (EVM), learning how cost, schedule, and scope come together to show true performance. You’ll build a solid foundation in EVM concepts, understand why formulas work, and learn how performance data actually supports leadership decisions.

You’ll master Work Breakdown Structures (WBS), control accounts, and budget baselines, then apply core EVM metrics like EAC, TCPI, and variance analysis. Through a detailed real-world example, you’ll forecast outcomes, analyze trends, and understand contingencies and management reserves with confidence.

Learn how experienced project managers monitor performance, communicate results clearly, and take corrective action before projects slip. With practical exercises and hands-on analysis, you’ll be ready to apply EVM immediately. Enroll now and start managing performance with clarity and control.

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