Abstract: A number of workers decision table creating unit in a workforce planning apparatus reads necessary information from a master file to create a number of workers decision table. A number of workers calculating unit uses the created, number of workers decision table to calculate a planned number of workers to be allocated for each operation process in a factory. A determination unit compares operation group information in an operation group storing file with the calculated, planned number of workers to determine whether each operation process can be carried out with the number of workers in the operation group. Therefore, it is possible to calculate the number of workers to be allocated for each operation process accurately, in production control in a factory with a job shop line.

Abstract: In an apparatus comprising an inspection jig 10 including a sample mounting portion 11 for mounting a sample 1, a vibrator 22 for applying vibration to the sample 1 and a sound collector 20 for collecting a vibration sound when the vibration is applied to the sample 1 by the vibrator 22, and a sound detector 30 for conducting frequency analysis of the vibration sound collected by the sound collector 20, the defects of the sample are determined by sampling and analyzing the vibration sound when the vibration is applied to the sample 1 by the vibrator 22 on the time series.

Abstract: An apparatus includes an inspection jig having a sample mounting fixture for mounting a sample, a vibrator for applying a vibration to the sample, and a sound collector for collecting vibration sound when the vibration is applied to the sample, and a sound detector for frequency analysis of the vibration sound collected by the sound collector. The sample is pinched and fixed by a contact surface of the sound collector and a fixing part with a contact area similar to the contact surface when the sample is mounted in the sample mounting fixture. The sample mounting fixture is mounted on a shaft of an inspection jig fixed in a bearing.