Visualization system

The present invention relates to a visualization system comprising: a first storage unit for storing manufacturing log information including the start time or the end time of each process for each manufacturing unit of a product manufactured by sequentially passing through a plurality of manufacturing processes; a second storage unit that stores time history information for each process characteristic element that is an element that affects the quality characteristics in the manufacturing process; a first generation unit that generates a time axis of the process characteristic elements synchronized with the elapsed time of the manufacturing log information, generates a display object indicating the state or change of the process characteristic elements on the basis of the elapsed time history information, arranges the display object on the time axis, and generates a timeline object of the process characteristic elements; and a display control unit that causes the display device to display a process characteri