A Gantt chart is a planning chart or chart that can be used as an aid in project management.
A Gantt Chart consists of a number of rows, each showing a phase or activity within the project. The first phases / activities are usually at the top and the x-axis shows the time. For each activity, a bar shows how much lead time is required. You can also display interdependencies, so that it is clear, for example, that activity B cannot start until activity A has been completed. You can also visually display milestones that represent an important moment, such as a moment of completion or an important decision that needs to be taken.
There are several programs that can be used to create a Gantt chart. For a simple figure, it is sufficient to color certain cells in a spreadsheet. For more advanced graphics, programs such as the free open source project Gantt, Microsoft Project, or the usual project management packages can be used.
Henry Laurence Gantt developed the Gantt chart around 1910. In his work as a mechanical engineer, management consultant, and business advisor, the Gantt chart was used as a visual aid to show the planning and progress of a project. At the time, this was seen as a startling innovation. The Gantt chart was used on major construction projects such as the Hoover Dam in 1931 and the interstate highway network in 1956.
The Gantt card is considered an accepted standard worldwide.