Interference Evaluation Device, Method, and Program

The present disclosure provides an acquisition unit acquiring an installation position, which serves as a point of origin within a range in which each of a plurality of robots can move, a start position, which is a prescribed location of each of the plurality of robots when in a starting posture, and an end position, which is a prescribed location when in a final posture, and an evaluation unit evaluates, for each of the plurality of robots, the risk of interference between the plurality of robots on the basis of overlap between polyhedra defined on the basis of polygons that include the installation position, the start position and the end position.