Improvements in or relating to data processing systems

摘要

A processing system which comprises a processing apparatus and a processing agent which is administered to a processing subject. The processing agent has a primary behaviour which provides the desired process result in conjunction with the apparatus, but also has a distinctive signature characteristic which is detected by test functionality in the processing system. The behaviour of the processing system can be modified in response to the test result. In an example such as a contrast enhanced medical imaging, the full functionality of the imaging equipment may be available only if a contrast agent having the particular distinctive signature characteristic is used, thus tying use of the apparatus to use of a particular agent.