The debate between cloud and on-premise solutions in Air Traffic Control (ATC) systems like Flight Information Displays (FIDs) for TWRs often comes down to how open the regulator is to cloud adoption. Each approach offers distinct advantages and challenges:

On-Premise Systems

On-premise solutions provide a direct connection to antennas and data sources, eliminating reliance on external networks. They also minimize cybersecurity risks, which is crucial in the highly regulated ATC environment. However, this approach has its downsides:

•Customization is more challenging, as software companies must either be physically present at the airport or send expensive missions to implement changes.

•Every software update requires deploying a new version, increasing time and costs.

Cloud Solutions

Cloud systems, on the other hand, offer flexibility and scalability. They enable remote customization—sometimes even in real time—allowing rapid iterations with Air Navigation Service Providers (ANSPs) and users like ATCOs and AFISOs. Mapping requirements and other adjustments can be fine-tuned without delays, ensuring both stakeholders are satisfied.

The Hybrid Model: Best of Both Worlds

Our proposal combines these approaches:

• Initial Cloud Deployment: The system is first deployed in the cloud, allowing iterative customization with the ANSP and end users until all requirements are met. Changes can be made remotely and instantly.

• On-Premise Transition: Once finalized, the software is delivered for on-premise use, mirroring the cloud version. The system is designed to seamlessly switch between cloud and on-premise sources.

If the regulator demands strict separation, the cloud version can be disconnected. However, this forfeits a significant advantage: using the cloud as an ideal backup solution for redundancy and system continuity.

Future Outlook

We envision a shift where the cloud version becomes the default, with on-premise as the backup. This approach ensures flexibility, reduces costs, and enhances system resilience, all without compromising safety or efficiency.