A project manager has recently been asked to take over an existing project. The project manager would like to determine how the project has been progressing by tracking features that are in…

A cumulative flow diagram (CFD) visually represents the amount of work in different states (e.g., backlog, in progress, completed) over time, providing insights into workflow, bottlenecks, and overall feature progression. This directly addresses the need to track features in 'in progress,' 'completed,' and 'scheduled' states simultaneously.

A burndown chart tracks the remaining work against time, typically showing progress towards completing all items in a sprint or release, but it does not differentiate between 'in progress' or 'scheduled' items.

A Pareto diagram is used for quality control to identify and prioritize the most significant causes of problems, not for tracking the flow and progress of features.

A burnup chart tracks the total amount of work completed over time towards a fixed scope, but it doesn't show the distribution of work across 'in progress,' 'completed,' or 'scheduled' categories.