This timeline for a project is graphically represented in this Gantt Chart Examples and Templates for Project Management diagram. It's a handy tool for keeping track of the tasks and relationships within a project. A Gantt chart, in layman's terms, is a bar graph showing the development of different tasks within a project. It's a musthave for any competent project manager. The Yaxis of a typical Gantt chart represents the name of tasks or groups of tasks. There's a time scale, in days or weeks, along the Xaxis.