The article deals with the analysis of the design of technical information flows and the assessment of the reliability of Airport Information Systems (AIS). It presents mathematical approaches to modelling time differences, failure probabilities and the efficiency of airport processes. The approach is based on identifying connections between individual subsystems and assessing their impact on overall reliability. The presented method enables the maximum probability of AIS operating without failure to be estimated. At the same time, it determines the optimal distribution of financial investments in modernising these systems. The results suggest that reducing the failure rate requires targeted investment in electronic, security, and signalling systems, which form the core of each airport's critical infrastructure. The findings of this study could directly impact the significance of strategic decision-making in airport development and highlight the need to implement artificial intelligence in future optimisation processes.
Science Journal 