System and methods are provided for an X-ray assembly including at least two X-ray facilities each with a control facility and a recording assembly including an X-ray tube and an X-ray detector. At least one of the X-ray facilities is a mobile X-ray facility with a mobile carrier carrying the recording assembly. The control facility of least one of the at least one mobile X-ray facility is configured to control the image recording operation of the respective X-ray facility using control data received from another control facility via a communication connection and/or to transfer at least one recorded image dataset to at least one further control facility via the communication connection.