A method (800, 900) for monitoring the removal of parts from a part provision system having a large number of part storage locations by an operator, wherein the part provision system is preferably associated with an assembly or pre-assembly or logistics zone in the vehicle construction sector, especially automobile sector, having the following steps: - providing a parts inventory, in which parts provided by the part provision system are associated with respective part storage locations; - specifying a selection of parts which has at least one part which is to be removed by the operator from the part provision system from among the provided parts; - recognising a removal error of the operator by means of a scanning unit and an evaluation unit; and - issuing a warning if a removal error has been recognised, by activation of a vibration alarm apparatus to be worn by the operator by means of the evaluation unit, wherein the step of recognising a removal error comprises the steps: - detecting in an optical and/or sensory manner a part removal location in the part provision system as a location of a removal of parts by the operator by means of the scanning unit; - comparing the detected part removal location with a part storage location at least of one of the parts of the specified selection of parts using the association of the part storage location in the parts inventory by means of an evaluation unit; and - establishing that there is a removal error if the part removal location does not match the part storage location of the at least one of the parts from the specified selection of parts by means of the evaluation unit, wherein the step of detecting the part removal location has the following steps: - detecting (932, 934) a hand position of the operator by means of the scanning unit, preferably with resolution in the depth direction of the scanning unit; and - associating (936, 950-956) the detected hand position of the operator with one of the part storage locations of the part provision system by means of the evaluation unit, wherein the step of detecting (932, 934) the hand position takes place at several points in time, wherein the step of associating the hand position has the following steps: - calculating a movement trajectory by linking past detected hand positions by means of the evaluation unit; and - anticipating a final hand position by extrapolating the ascertained movement trajectory by means of the evaluation unit, wherein an association of the hand position takes place when the anticipated final hand position corresponds with sufficient probability to a possible part storage location. - providing a parts inventory, in which parts provided by the part provision system are associated with respective part storage locations; - specifying a selection of parts which has at least one part which is to be removed by the operator from the part provision system from among the provided parts; - recognising a removal error of the operator by means of a scanning unit and an evaluation unit; and - issuing a warning if a removal error has been recognised, by activation of a vibration alarm apparatus to be worn by the operator by means of the evaluation unit, - detecting in an optical and/or sensory manner a part removal location in the part provision system as a location of a removal of parts by the operator by means of the scanning unit; - comparing the detected part removal location with a part storage location at least of one of the parts of the specified selection of parts using the association of the part storage location in the parts inventory by means of an evaluation unit; and - establishing that there is a removal error if the part removal location does not match the part storage location of the at least one of the parts from the specified selection of parts by means of the evaluation unit, - detecting (932, 934) a hand position of the operator by means of the scanning unit, preferably with resolution in the depth direction of the scanning unit; and - associating (936, 950-956) the detected hand position of the operator with one of the part storage locations of the part provision system by means of the evaluation unit, - calculating a movement trajectory by linking past detected hand positions by means of the evaluation unit; and - anticipating a final hand position by extrapolating the ascertained movement trajectory by means of the evaluation unit,