The Gantt Project is an open source initiative that aims to create a program that can create graphs representing the distribution of a project's work in the short, medium and long term.
The image does not have to be applied to the business world. You can create a diagram that distributes the time needed to prepare for an exam, build a house, or perform a specific task.
The program lets you distribute activities by individuals or "resources" and can also be used to manage group projects.
The Gantt Project allows you to test the progress of tasks and save a copy of their status about when they will be implemented so that you can compare them later when they are finished.
This tool is so complete that it allows you to set when there are generally free days as well as holidays for each worker.