OnePacs can dispatch incoming studies to the appropriate facility based on facility distribution rules that assess information in the incoming DICOM header. See DICOM transmission models for more information.
If the DICOM header does not contain the necessary information to determine which OnePacs facility a study should be dispatched to, it is possible to supplement the DICOM header with additional information via coercion rules. It is common to make this distinction based on the called or calling AE title of DICOM C-STORE to the OnePacs Gateway. To facilitate this, it is necessary to store the called / calling AE title in a DICOM tag using coercion rules so that it may be evaluated on the server.