An apparatus for processing data in a computer-aided logic system includes at least one reasoning device having a reasoner, which draws conclusions on the basis of a semantic model and a model instance of the semantic model using data, at least one data source for providing data for processing by the reasoning device, and at least one application which makes a request to the reasoning device and receives results of conclusions from the reasoning device. The reasoning device and the data source interact such that the reasoning device takes an event which has occurred in the data source, particularly at particular times, as a basis for receiving associated event-based data from the data source for the purpose of drawing a causal and/or temporal-based conclusion. The information about the event-based data from the data source includes a temporal and a causal component. There are also described a related method and implementation.