SOTIF (Safety of the Intended Functionality)

SOTIF (Safety of the Intended Functionality) refers to safety risks arising from functional limitations or environmental uncertainties, even without component failure. It is governed by ISO 21448 and is critical for AI-driven autonomous vehicles to ensure safe operation in complex real-world scenarios. Unlike traditional functional safety (ISO 26262), which focuses on system failures, SOTIF addresses risks where the system works as designed but fails to handle specific scenarios correctly. This makes it a cornerstone of AI-based automotive safety and cybersecurity integration, requiring a proactive approach to identify and mitigate edge cases before they lead to hazardous events in the field.

SOTIF implementation typically follows three stages: Scenario Identification, Risk Assessment, and Validation & Verification (V&V). Companies must first build a comprehensive scenario-based database, including weather, traffic, and sensor-specific limitations. Risk-adjusted-by-scenario assessment then quantifies the severity and probability of unintended behaviors. Finally, a combination of simulation, hardware-in-the-loop (HIL), and road testing is used to verify the AI's performance at the design boundaries. Successful implementation can reduce post-launch recall risks by up to 30% and significantly lower the cost of late-stage design changes, as demonstrated by leading European OEMs and Tier-1 suppliers.

Taiwanese enterprises primarily face three challenges: AI interpretability, high simulation costs, and lack of specialized talent. To overcome AI interpretability issues, companies should adopt hybrid verification methods combining statistical analysis with formal methods. For simulation costs, investing in cloud-based large-scale simulation platforms can provide the necessary scale for edge-case testing. Finally, the talent gap can be addressed by upskilling existing engineers through specialized training programs. A phased approach—starting with a pilot AI feature before scaling to the entire system—is recommended to manage the initial investment and learning curve effectively.

Winners Consulting Services Co., Ltd. specializes in SOTIF for Taiwan enterprises, delivering compliant management systems within 90 days. We have assisted over 100 enterprises in navigating the complexities of ISO 21448 and TISAX compliance, ensuring they meet the stringent requirements of global automotive manufacturers. Our approach combines international best practices with local-specific implementation strategies, providing a clear roadmap for compliance and competitive advantage. For a free mechanism diagnosis, please visit: https://winners.com.tw/contact