Method for measuring a plurality of workpieces, wherein each of the workpieces has a plurality of structural features that are equally present in the other workpieces and are test features (18, 20) that are to be measured, wherein the method includes: a) ascertaining or assuming at least one unstable test feature (18; 20), wherein a violation of at least one statistical control rule is present or assumed for the unstable test feature, b) ascertaining or assuming at least one stable test feature (18; 20), wherein no violation of at least one statistical control rule is present or assumed for the stable test feature, c) measuring a plurality of workpieces, wherein the at least one unstable test feature is measured more frequently than the at least one stable test feature, characterized in that the method further includes: d) ascertaining whether a violation of at least one statistical control rule continues to be present for the at least one unstable test feature and thus whether the at least one unstable test feature continues to be unstable, and ascertaining whether a violation of at least one statistical control rule continues to not be present for the at least one stable test feature and thus whether the at least one stable test feature continues to be stable, and furthermore including e) measuring further workpieces (4a, 4b) as in c), if, based on the ascertainment in d), the at least one unstable test feature continues to be unstable and the at least one stable test feature continues to be stable, or, as an alternative to e), f) repeating a) and b) if one or more of the following cases occur: i. if, based on the ascertainment in d), the at least one unstable test feature is no longer unstable and/or the at least one stable test feature is no longer stable, ii. if a change in a production process of the workpieces, a change in a measurement method, or a change in environmental conditions has occurred, iii. if c) has been performed for a predetermined time period, iv. if c) has been performed on a predetermined number of workpieces, v. if a new batch of workpieces is measured or is to be measured, in order to newly determine at least one unstable test feature and at least one stable test feature, and subsequently repeating c), wherein, subsequently, a sequence of d) and then e) or f) can be repeated once or multiple times. a) ascertaining or assuming at least one unstable test feature (18; 20), wherein a violation of at least one statistical control rule is present or assumed for the unstable test feature, b) ascertaining or assuming at least one stable test feature (18; 20), wherein no violation of at least one statistical control rule is present or assumed for the stable test feature, c) measuring a plurality of workpieces, wherein the at least one unstable test feature is measured more frequently than the at least one stable test feature, d) ascertaining whether a violation of at least one statistical control rule continues to be present for the at least one unstable test feature and thus whether the at least one unstable test feature continues to be unstable, and ascertaining whether a violation of at least one statistical control rule continues to not be present for the at least one stable test feature and thus whether the at least one stable test feature continues to be stable, and furthermore including e) measuring further workpieces (4a, 4b) as in c), if, based on the ascertainment in d), the at least one unstable test feature continues to be unstable and the at least one stable test feature continues to be stable, or, as an alternative to e), f) repeating a) and b) if one or more of the following cases occur: i. if, based on the ascertainment in d), the at least one unstable test feature is no longer unstable and/or the at least one stable test feature is no longer stable, ii. if a change in a production process of the workpieces, a change in a measurement method, or a change in environmental conditions has occurred, iii. if c) has been performed for a predetermined time period, iv. if c) has been performed on a predetermined number of workpieces, v. if a new batch of workpieces is measured or is to be measured, i. if, based on the ascertainment in d), the at least one unstable test feature is no longer unstable and/or the at least one stable test feature is no longer stable, ii. if a change in a production process of the workpieces, a change in a measurement method, or a change in environmental conditions has occurred, iii. if c) has been performed for a predetermined time period, iv. if c) has been performed on a predetermined number of workpieces, v. if a new batch of workpieces is measured or is to be measured, in order to newly determine at least one unstable test feature and at least one stable test feature, and subsequently repeating c), wherein, subsequently, a sequence of d) and then e) or f) can be repeated once or multiple times.