The system solution KISA facilitates communication between subsystems and features of the control command and signalling technology at all levels by deploying modern communication networks. It is advantageous to apply standardised technologies and construct redundant means of transmission. The protection of the network from external deliberate impairments and the security of the information transmission are of great importance in the railway system.

The assessor takes part in the type approval of KISA with the aim to evaluate the system itself as well as the coherence of the documents.