Task progress update history visualization system

摘要

A system is provided that visualizes task progress update history. The system displays a project plan timeline within a user interface, where the project plan timeline includes tasks indicators that visually represent tasks and a timeline including time unit indicators that visually represent time units. The system further displaying task progress update history within the project plan timeline, where the task progress update history includes task progress update indicators that visually represent task progress updates, and where a task progress update indicator visually indicates a date-time of a task progress update and a task progress reported by the task progress update.