An apparatus for alarm information determination, comprising: - an input unit; - a processing unit; and - an output unit; characterised in that the input unit is configured to provide the processing unit with historical process control data, wherein the process control data comprises a plurality of data signals, a plurality of alarm data and data relating to an event of interest, wherein the data relating to the event of interest comprises a user input query term; wherein, the processing unit is configured to determine a plurality of correlation scores for the plurality of data signals paired with the plurality of alarm data, wherein a correlation score is determined for a data signal paired with an alarm data and wherein a high score indicates a higher degree of correlation than a low score; wherein, the processing unit is configured to identify at least one first alarm data from the plurality of alarm data, the identification comprising utilization of the data relating to the event of interest, wherein the processing unit is configured to utilize the query term to identify the at least one first alarm data; wherein, the processing unit is adapted to identify at least one first data signal from the plurality of data signals, the identification comprising utilization of the correlation scores for the identified at least one first alarm data paired with the plurality of data signals, wherein identification of the at least one first data signal comprises a determination of one or more data signals of the plurality of data signals that have the highest correlation scores when paired with the at least one alarm data; and wherein, the output unit is configured to output the at least one first data signal. - an input unit; - a processing unit; and - an output unit; characterised in that the input unit is configured to provide the processing unit with historical process control data, wherein the process control data comprises a plurality of data signals, a plurality of alarm data and data relating to an event of interest, wherein the data relating to the event of interest comprises a user input query term; wherein, the processing unit is configured to determine a plurality of correlation scores for the plurality of data signals paired with the plurality of alarm data, wherein a correlation score is determined for a data signal paired with an alarm data and wherein a high score indicates a higher degree of correlation than a low score; wherein, the processing unit is configured to identify at least one first alarm data from the plurality of alarm data, the identification comprising utilization of the data relating to the event of interest, wherein the processing unit is configured to utilize the query term to identify the at least one first alarm data; wherein, the processing unit is adapted to identify at least one first data signal from the plurality of data signals, the identification comprising utilization of the correlation scores for the identified at least one first alarm data paired with the plurality of data signals, wherein identification of the at least one first data signal comprises a determination of one or more data signals of the plurality of data signals that have the highest correlation scores when paired with the at least one alarm data; and wherein, the output unit is configured to output the at least one first data signal. characterised in that the input unit is configured to provide the processing unit with historical process control data, wherein the process control data comprises a plurality of data signals, a plurality of alarm data and data relating to an event of interest, wherein the data relating to the event of interest comprises a user input query term; wherein, the processing unit is configured to determine a plurality of correlation scores for the plurality of data signals paired with the plurality of alarm data, wherein a correlation score is determined for a data signal paired with an alarm data and wherein a high score indicates a higher degree of correlation than a low score; wherein, the processing unit is configured to identify at least one first alarm data from the plurality of alarm data, the identification comprising utilization of the data relating to the event of interest, wherein the processing unit is configured to utilize the query term to identify the at least one first alarm data; wherein, the processing unit is adapted to identify at least one first data signal from the plurality of data signals, the identification comprising utilization of the correlation scores for the identified at least one first alarm data paired with the plurality of data signals, wherein identification of the at least one first data signal comprises a determination of one or more data signals of the plurality of data signals that have the highest correlation scores when paired with the at least one alarm data; and wherein, the output unit is configured to output the at least one first data signal.