After three successful editions, a fourth edition of the ‘Fleet-based analytics for data-driven operation and maintenance optimisation’ seminar will take place on 24 September. The seminar focuses on the challenges of optimising the operation and maintenance of a fleet of machines by means of data-driven analytics and hybrid modelling strategies. In addition, a new mastercourse, ‘The opportunities and challenges of fleet-based analytics’, on 25 September will provide practical techniques for analysing fleets of machines.