A bus system comprising a master connected to one or more slave devices via a bus is disclosed. An example method may comprise: executing, by one or more processing devices, a search query to produce a dataset comprising one or more data items derived from source data; and responsive to determining that at least a portion of the dataset satisfies a triggering condition, modifying a score assigned to an object to which the portion of the dataset pertains. Provided at the free end is a thrust bearing which has a dome-shaped end provided at that free end, and a contact member, coacting with the latter dome, the contact member being made at least partially of ferromagnetic material. The second output image signal comprises part of the first input image signal and part of the second input image signal. As a result, complex self-test commands that simultaneously access a plurality of memory banks can be generated by a very low development outlay.