An IoT system continuously gathers the data from surrounding environments, it is considered as a example of Big Data. IoT and Big Data can be clubbed together because it is essential for extracting certain facts from collected data.

On the other hand, Cyber-Physical Systems are built up from the integration of embedded computing devices & smart objects governed by a communication infrastructure. So, the design of CPS and the implementation of their applications need to rely on IoT. Cloud Computing infrastructures and platforms can be used for facilitating IoT based CPS systems to provide computational resources with security measures.

thank's for your answer Sir.