Machining method for a workpiece by way of a tool of a machine tool, - wherein a control device of the machine tool receives a target machining , according to which the workpiece is to be machined by the tool , - wherein the control device controls the machine tool so that the workpiece is machined by the tool , - wherein the control device , during the machining of the workpiece by the tool , establishes by evaluating captured sensor signals (S) whether undesired vibrations are occurring or not, - wherein predefined rules are stored in the control device , wherein the rules define the manner in which, in the event of undesired vibrations occurring during the machining of the workpiece by the tool , the machining of the workpiece by the tool is to be modified, - wherein the control device , in the case in which the undesired vibrations do not occur, carries out the machining according to the target machining and, in the case in which the undesired vibrations do occur, modifies the machining according to the rules , - wherein the control device of the machine tool, before the machining of the workpiece by the tool , receives via an interface a parameterisation of the rules , - wherein the interface is embodied as a human-machine interface and the control device receives the parameterisation of rules from an operator of the machine tool, and - wherein the control device selects the rules according to the parameterisation wherein the parameterisation specifies a hold time (T) during which the modified target machining is to be retained unchanged after a modification of the machining, wherein in the case in which, after a modification of the machining of the workpiece , the undesired vibrations no longer occur, the modification is cancelled again. - wherein a control device of the machine tool receives a target machining , according to which the workpiece is to be machined by the tool , - wherein the control device controls the machine tool so that the workpiece is machined by the tool , - wherein the control device , during the machining of the workpiece by the tool , establishes by evaluating captured sensor signals (S) whether undesired vibrations are occurring or not, - wherein predefined rules are stored in the control device , wherein the rules define the manner in which, in the event of undesired vibrations occurring during the machining of the workpiece by the tool , the machining of the workpiece by the tool is to be modified, - wherein the control device , in the case in which the undesired vibrations do not occur, carries out the machining according to the target machining and, in the case in which the undesired vibrations do occur, modifies the machining according to the rules , - wherein the control device of the machine tool, before the machining of the workpiece by the tool , receives via an interface a parameterisation of the rules , - wherein the interface is embodied as a human-machine interface and the control device receives the parameterisation of rules from an operator of the machine tool, and - wherein the control device selects the rules according to the parameterisation wherein the parameterisation specifies a hold time (T) during which the modified target machining is to be retained unchanged after a modification of the machining, wherein in the case in which, after a modification of the machining of the workpiece , the undesired vibrations no longer occur, the modification is cancelled again. <EOS>