Production efficiency improvement support system

A production efficiency improvement support method implemented in a computer, for supporting improvement in production efficiency of production equipment used to produce a product, the production efficiency improvement support method comprising:

• storing, in a storage unit of the computer, detection results obtained by detecting an operating status of the production equipment during operation of the production equipment;
• calculating, using the computer, an operational availability that is a ratio of time during which the production equipment is operating, and a cycle time that is a time period required to produce the product, a plurality of times during the operation of the production equipment, based on the detection results read from the storage unit;
• and
• displaying, on a display screen, a chart with the operational availability as an ordinate and the cycle time as an abscissa, by plotting a plurality of points corresponding to the calculated operational availability and the calculated cycle time such that dispersion of the plotted points visually represents variations in the calculated operational availability and the calculated cycle time, wherein the dispersion of the plotted points in a direction along the ordinate indicates an unstable operation of the production equipment, while dispersion of the plotted points in a direction along the abscissa indicates an unstable production process, which are visually recognizable.