Method for Monitoring a Production Process, Computer Program, and Electronically Readable Data Carrier

A method for monitoring a production process in which a structural member having a structural-member quality is produced from a semifinished product exhibiting at least one semifinished-product property by using at least one process parameter that characterizes a state and/or a property of an apparatus being used for the production process, the method comprising:

• making inventory data records available, an inventory data record being made available for each production process already carried out, the inventory data records comprising structural-member quality of the structural member produced in the course of the production process carried out, the at least one process parameter used and/or the at least one semifinished-product property;
• creating a current data record that comprises the at least one semifinished-product property of the semifinished product being used in the course of a current production process, the at least one current process parameter and/or the associated structural-member quality;
• ascertaining a first respective similarity between the at least one process parameter of the respective inventory data record and the at least one process parameter of the current data record;
• ascertaining a second respective similarity between the at least one semifinished-product property of the respective inventory data record and the at least one semifinished-product property of the current data record;
• selecting at least one inventory data record if the associated first similarity lies within a first tolerance value and the second similarity lies within a second tolerance value;
• forming a respective difference between the structural-member quality of the at least one selected inventory data record and the structural-member quality of the current data record;
• and
• outputting a signal as a function of a magnitude of the difference.