Method for determining the wear on at least one exchangeable module (2, 3, 4, 5, 6, 13) of a device for processing plastics and other plasticisable materials by a cyclical or continuous processing procedure and for the output of wear-based analysis and action recommendations, wherein the device comprises at least one exchangeable module (2, 3, 4, 5, 6, 13) and wherein the device comprises a control unit and communication interfaces, comprising a cyclic recording and storage of process parameter data of process parameters, which comprise process-specific information, in a data store of the device, characterized in that the device and the at least one exchangeable module (2, 3, 4, 5, 6, 13) each have a control unit (27, 37, 47, 57, 137; 7) and communication interfaces (9, 29, 39, 49, 59, 69, 139) between the control units (27, 37, 47, 57, 137; 7), characterized by the steps: - providing module data, which comprise information regarding module components used, in a data store (28, 38, 48, 58, 138) of the at least one module (2, 3, 4, 5, 6, 13) and sending the module data by means of the control unit (27, 37, 47, 57, 137) of the at least one module (2, 3, 4, 5, 6, 13) to the control unit of the device for storage in the data store of the device, - cyclical acquisition and storage of process parameter data of process parameters of the device, said process parameter data comprising process-specific and/or material-specific information, in the data store (28, 38, 48, 58, 138) of the at least one module (2, 3, 4, 5, 6, 13) during the processing procedure by the control unit (27, 37, 47, 57, 137) of the at least one module (2, 3, 4, 5, 6, 13), - weighting the process parameter data with a capacity utilisation value and/or a cycle count and/or an operating duration of the module (2, 3, 4, 5, 6, 13) by the control unit (27, 37, 47, 57, 137) of the at least one module (2, 3, 4, 5, 6, 13), - storing the weighted process parameter data in the data store (28, 38, 48, 58, 138) of the at least one module (2, 3, 4, 5, 6, 13) and sending the weighted process parameter data to the control unit of the device for storage in a data store of the device by means of the control unit (27, 37, 47, 57, 137) of the at least one module (2, 3, 4, 5, 6, 13), - cyclical determination of wear parameter data regarding the at least one exchangeable module (2, 3, 4, 5, 6, 13) from the module data and the weighted process parameter data, their summation to a cumulative wear parameter and storage in the data store of the device by means of the control unit of the device, - generating, outputting and storing an analysis and action recommendation in the data store of the device by the control unit of the device when the cumulative wear parameter exceeds a critical reference parameter stored in the data store of the device. - providing module data, which comprise information regarding module components used, in a data store (28, 38, 48, 58, 138) of the at least one module (2, 3, 4, 5, 6, 13) and sending the module data by means of the control unit (27, 37, 47, 57, 137) of the at least one module (2, 3, 4, 5, 6, 13) to the control unit of the device for storage in the data store of the device, - cyclical acquisition and storage of process parameter data of process parameters of the device, said process parameter data comprising process-specific and/or material-specific information, in the data store (28, 38, 48, 58, 138) of the at least one module (2, 3, 4, 5, 6, 13) during the processing procedure by the control unit (27, 37, 47, 57, 137) of the at least one module (2, 3, 4, 5, 6, 13), - weighting the process parameter data with a capacity utilisation value and/or a cycle count and/or an operating duration of the module (2, 3, 4, 5, 6, 13) by the control unit (27, 37, 47, 57, 137) of the at least one module (2, 3, 4, 5, 6, 13), - storing the weighted process parameter data in the data store (28, 38, 48, 58, 138) of the at least one module (2, 3, 4, 5, 6, 13) and sending the weighted process parameter data to the control unit of the device for storage in a data store of the device by means of the control unit (27, 37, 47, 57, 137) of the at least one module (2, 3, 4, 5, 6, 13), - cyclical determination of wear parameter data regarding the at least one exchangeable module (2, 3, 4, 5, 6, 13) from the module data and the weighted process parameter data, their summation to a cumulative wear parameter and storage in the data store of the device by means of the control unit of the device, - generating, outputting and storing an analysis and action recommendation in the data store of the device by the control unit of the device when the cumulative wear parameter exceeds a critical reference parameter stored in the data store of the device.