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Architecture Kata

EU Border SecurityArchitecture

A conceptual software architecture for a national border security system, focusing on real-time data processing, threat detection, and multi-agency collaboration under strict EU regulations.

99.99%

Availability

< 1.5s

Response Time

0

RPO

< 4min

RTO

01

// Introduction & Context

The Border Control System (BCS) is a centralized European system aimed at improving the efficiency and security of border control at the external borders of the European Union, in accordance with EU Regulation 2017/2226 (EES) and the interoperability regulations EU 2019/817 and 2019/818.

The system manages extremely sensitive information, including alphanumeric and biometric data of Third-Country Nationals (TCNs), and must ensure high levels of security, availability, performance, and fault tolerance, meeting strict non-functional requirements.

Security by Design

End-to-end encryption, mTLS, and immutable audit trails for all border crossings.

Legal Compliance

Full adherence to EES, interoperability regulations, and GDPR requirements.

02

// System Diagrams

01Context (C1)
Context Diagram

Operational context showing user roles, external systems, and security trust boundaries.

02Physical / Infrastructure (C2)
Infrastructure Diagram

Multi-data center deployment achieving high availability and fault tolerance.

03Components (C3)
Component Diagram

Logical decomposition into services, orchestration, and data repositories.

03

// Architectural Decisions

Conclusion

The proposed architecture for the European Border Control System satisfies the defined functional and non-functional requirements, incorporating principles of security by design, high availability, and controlled evolution.