PERT Chart
A PERT Chart displays tasks related to some project, relationship, and consistency between them and time intervals required to complete each of them. All this allows us to calculate the total project duration and optimize the plan. PERT stands for Program Evaluation Review Technique, a methodology developed by the U.S. Navy to manage the Polaris submarine missile program.
Sankey Chart
Sankey chart represents nodes connected by lines/arrows and is used to visually show flows of any kind going from one node to another. The width of each line is pictured based on the flow quantity.
Sankey Diagram
A Sankey diagram visualizes flows (of any kind) and their quantities in proportion to one another. It represents nodes connected with one another by lines or arrows (the bigger the quantity, the wider the line). Sankey Diagrams are widely used in science, especially in physics.
Stacked Column Polar Chart
Sunburst Chart
A Sunburst chart visualizes hierarchical data structures. It represents a root node surrounded by rings of deeper hierarchy moving outward from the center. The angle of each segment depends on the value of its parent node or on its own value.