Reporters obtained the following quote from the background information supplied by the inventors: “Maintenance and repairing are crucial operations in order to safeguard a continuous operation of elevator systems. Due to this, approaches to detect an instant of time for the maintenance are introduced. For example, one approach applied in the maintenance is based on an idea where measurement data i s gathered from the elevator systems and by applying predictive methods to the m easurement data it has been possible to evaluate a need for the maintenance. In other words, a decision-making is based on data from which it may e.g. be derive d how long a certain component under monitoring based on the history data operat es properly and the maintenance work is scheduled accordingly.
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