DETERMINING MAINTENANCE FOR A MACHINE

Apparatus for determining a maintenance task for a machine comprises comprising one or more processors or dedicated hardware configured to: access a target sensor log corresponding to a first machine; access one or more prior sensor logs corresponding to the first machine and one or more prior sensor logs corresponding to a plurality of second machines which are of the same type as the first machine; access a plurality of computer readable logs corresponding to the first machine and the second machines, the computer readable logs for each second machine comprising a maintenance log comprising a plurality of maintenance task objects, each maintenance task object comprising a time and a maintenance task type; the apparatus further comprising: a statistical metric determining module configured to determine a set of statistical metrics characterising a difference between the target sensor log and each prior sensor log; a ranking module configured to select a sub-set of the prior sensor logs in dependence upon the statistical metrics; a fault maintenance correlation module configured to analyse the maintenance logs to correlate each prior sensor log included in the subset to one or more correlated maintenance tasks; and a maintenance task determining module configured to: select a priority maintenance task based on the sub-set of prior sensor logs, and the correlated maintenance tasks; and output the priority maintenance task.