Cumulative Flow Diagram
A Cumulative Flow Diagram (CFD) is a visual tool used in Agile and Kanban methodologies to track the progress of work items through various stages of a workflow over time. It displays the cumulative number of items in each workflow state (e.g., backlog, in progress, done) as stacked area charts, helping teams monitor work-in-progress (WIP), identify bottlenecks, and predict completion times. By analyzing the diagram, teams can gain insights into flow efficiency, stability, and potential issues in their processes.
Developers should learn and use Cumulative Flow Diagrams when working in Agile or Kanban environments to improve workflow management and team productivity. It is particularly useful for identifying bottlenecks in development pipelines, such as code review delays or testing backlogs, and for forecasting project timelines based on historical data. For example, in software development, a CFD can help a team spot if items are piling up in the 'testing' stage, prompting adjustments to resource allocation or process improvements.