Method and device for operating a laser material processing machine

A test bench for a laser material processing machine, the test bench configured to:

• vary process parameters using Bayesian optimization until a result of the laser material processing is sufficiently good, the Bayesian optimization taking place using a data-based process model, wherein, during the variation of the process parameters, it is taken into consideration how probable it is that a variable which characterizes a quality of the result is within predefinable boundaries.

A non-transitory machine-readable memory medium on which is stored a computer program for operating a laser material processing machine, the computer program, when executed by a computer, causing the computer to perform the following steps:

• varying process parameters using Bayesian optimization until a result of the laser material processing is sufficiently good, the Bayesian optimization taking place using a data-based process model, wherein, during the variation of the process parameters, it is taken into consideration how probable it is that a variable which characterizes a quality of the result is within predefinable boundaries.