Method for evaluating the performance of a dynamic weighing instrument , said dynamic weighing instrument comprising conveyor means for conveying an object to be weighed and weighing means for weighing the object while being conveyed by said conveyor means , said weighing instrument being operable in one of a plurality of operating states, each operating state being determined by parameter values of at least one operating state parameter, said weighing instrument being adapted to output a weighing value as the result of a weighing operation in a given operating state, characterized in that the method comprises the following steps: - selecting a plurality of M evaluation states E k , k=1, ..., M, M ≥ 2, from the set of operating states and a number N k of weighing operations to be carried out in the respective evaluation state E k , - executing a performance evaluation routine, wherein said routine comprises, for each of the plurality of evaluation states E k , k=1, ..., M, carrying out the following evaluation routine steps: o operating the weighing instrument in the evaluation state E k determined by the corresponding parameter values of the at least one operating state parameter, o carrying out N k weighing operations in said evaluation state E k thereby obtaining N k weighing values as the output of the dynamic weighing instrument , o using the N k weighing values as an input to derive a performance value for the evaluation state E k , o storing performance data comprising the performance value and meta data comprising data associated with the evaluation state E k in a data base, said meta data comprising the parameter values of the at least one operating state parameter which determine the operating state E k . - selecting a plurality of M evaluation states E k , k=1, ..., M, M ≥ 2, from the set of operating states and a number N k of weighing operations to be carried out in the respective evaluation state E k , - executing a performance evaluation routine, wherein said routine comprises, for each of the plurality of evaluation states E k , k=1, ..., M, carrying out the following evaluation routine steps: o operating the weighing instrument in the evaluation state E k determined by the corresponding parameter values of the at least one operating state parameter, o carrying out N k weighing operations in said evaluation state E k thereby obtaining N k weighing values as the output of the dynamic weighing instrument , o using the N k weighing values as an input to derive a performance value for the evaluation state E k , o storing performance data comprising the performance value and meta data comprising data associated with the evaluation state E k in a data base, said meta data comprising the parameter values of the at least one operating state parameter which determine the operating state E k . o operating the weighing instrument in the evaluation state E k determined by the corresponding parameter values of the at least one operating state parameter, o carrying out N k weighing operations in said evaluation state E k thereby obtaining N k weighing values as the output of the dynamic weighing instrument , o using the N k weighing values as an input to derive a performance value for the evaluation state E k , o storing performance data comprising the performance value and meta data comprising data associated with the evaluation state E k in a data base, said meta data comprising the parameter values of the at least one operating state parameter which determine the operating state E k . <EOS>