Display system, display method, and non-transitory computer-readable recording medium recording display program

A display method for displaying, on a display unit, a causal relationship of an abnormality that can occur in production equipment that produces a product and has at least one driving means for driving the production equipment and at least one monitoring means for monitoring the production, the display method comprising:

• obtaining a feature output over time from at least one among the driving means and the monitoring means;
• constructing, at each prescribed time, a causal relationship model that indicates at least one causal factor that is selected from the driving means and the monitoring means for at least one abnormality that can occur in the production equipment and a relationship between the causal factors based on the obtained feature;
• and
• displaying, on the display unit, a plurality of the causal relationship models constructed at a plurality of the times.

A non-transitory computer-readable recording medium, recording a display program for displaying, on a display unit, a causal relationship of an abnormality that can occur in production equipment that produces a product and has at least one driving means for driving the production equipment and at least one monitoring means for monitoring the production, the display program causing a computer to execute:

• obtaining a feature output over time from at least one among the driving means and the monitoring means;
• constructing, at each prescribed time, a causal relationship model that indicates at least one causal factor that is selected from the driving means and the monitoring means for at least one abnormality that can occur in the production equipment and a relationship between the causal factors based on the obtained feature;
• and
• displaying, on the display unit, a plurality of the causal relationship models constructed at a plurality of the times.