The invention relates to a measurement system for an analyte determination, having an analy¬sis unit (2), which is configured to determine a measured analyte value for a body fluid specimen that is applied, a fingerprint sensor (3), which is configured to detect fingerprint sensor signals for one or various users, and a control unit (1), which is connected to the analy¬sis unit (2) and the fingerprint sensor unit (3) for data transmission, whereby the control unit (1) is configured to perform a user identification using the detected fingerprint sensor signals and after successful user identification to enable a determination of a measured analyte value with the analysis unit (2) for an identified user, and whereby the control unit (1) is addition¬ally configured , to analyze the detected fingerprint sensor signals and optionally additional detected fingerprint sensor signals in addition to the user identification in order to provide control signals for performing additional measurement system functions. The invention addi¬tionally relates to a method for operating a measurement system. (Fig. 1)