A method for operating a laboratory system comprising one or more laboratory instrument(s), a sample input station and a control unit communicatively connected by a communication network, the method comprising the steps of: - receiving a biological sample by the sample input station, the biological sample being contained in a sample tube having a sample tube identifier; - the sample input station determining a sample ID of the biological sample by reading the sample tube identifier of the sample tube; - the sample input station transmitting the sample ID of the biological sample to the control unit; - the control unit determining whether a definite test order is available to the laboratory system corresponding to the sample ID of the biological sample received, the definite test order being indicative of one or more processing step(s) to be executed on the biological sample; - if a definite test order corresponding to the biological sample received is available to the laboratory system: - the control unit retrieving the corresponding definite test order and instructing the laboratory system to execute the one or more processing steps on the biological sample; - if a definite test order corresponding to the biological sample received is not available to the laboratory system: - generating a provisional test order corresponding to the sample ID of the biological sample received, the provisional test order being indicative of one or more provisional processing steps to be executed on the biological sample; and - the control unit instructing the laboratory system to execute the one or more provisional processing steps on the one or more biological sample according to the provisional test order; characterized in that - if a definite test order corresponding to the biological sample received is not available to the laboratory system and if a provisional test order corresponding to the sample ID cannot be automatically generated, the step of generating the provisional test order comprises the steps of: - determining one or more most common analytical test(s) executed by the laboratory system; - retrieving one or more processing steps corresponding to the most common analytical test(s). - receiving a biological sample by the sample input station, the biological sample being contained in a sample tube having a sample tube identifier; - the sample input station determining a sample ID of the biological sample by reading the sample tube identifier of the sample tube; - the sample input station transmitting the sample ID of the biological sample to the control unit; - the control unit determining whether a definite test order is available to the laboratory system corresponding to the sample ID of the biological sample received, the definite test order being indicative of one or more processing step(s) to be executed on the biological sample; - if a definite test order corresponding to the biological sample received is available to the laboratory system: - the control unit retrieving the corresponding definite test order and instructing the laboratory system to execute the one or more processing steps on the biological sample; - the control unit retrieving the corresponding definite test order and instructing the laboratory system to execute the one or more processing steps on the biological sample; - if a definite test order corresponding to the biological sample received is not available to the laboratory system: - generating a provisional test order corresponding to the sample ID of the biological sample received, the provisional test order being indicative of one or more provisional processing steps to be executed on the biological sample; and - the control unit instructing the laboratory system to execute the one or more provisional processing steps on the one or more biological sample according to the provisional test order; - generating a provisional test order corresponding to the sample ID of the biological sample received, the provisional test order being indicative of one or more provisional processing steps to be executed on the biological sample; and - the control unit instructing the laboratory system to execute the one or more provisional processing steps on the one or more biological sample according to the provisional test order; - if a definite test order corresponding to the biological sample received is not available to the laboratory system and if a provisional test order corresponding to the sample ID cannot be automatically generated, the step of generating the provisional test order comprises the steps of: - determining one or more most common analytical test(s) executed by the laboratory system; - retrieving one or more processing steps corresponding to the most common analytical test(s). - determining one or more most common analytical test(s) executed by the laboratory system; - retrieving one or more processing steps corresponding to the most common analytical test(s).