INFORMATION PROCESSING DEVICE

PROBLEM TO BE SOLVED: To provide an information processing device capable of performing highly-reliable verification on every tolerance integration route in a short time.SOLUTION: A piece of positional information representing a target of tolerance analysis in a CAD model is input (S11). Interferences among the components constituting an assembly represented by the CAD model are determined to detect a route where the tolerance is accumulated among the targets of the tolerance analysis represented by the positional information (S12, S13). A tolerance relevant to interference faces of the components on the route is obtained on each detected route (S14). The tolerances obtained for each detected route are integrated to calculate an integrated tolerance accumulated among the targets of the tolerance analysis (S15).