ISO 21448 Insights

What is ISO 21448?

ISO 21448, also known as SOTIF (Safety Of The Intended Functionality), is an international standard that addresses the safety of intended functionality in road vehicles. It focuses on hazards resulting from functional insufficiencies in the absence of faults. In essence, it deals with situations where the system behaves as designed, but that behavior can still lead to unacceptable risks. SOTIF complements ISO 26262 (functional safety), which primarily addresses hazards due to malfunctions. ISO 21448 provides a framework for identifying, analyzing, and mitigating these hazards through a risk-based approach, covering the entire development lifecycle from concept to operation.

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What other technologies are related to ISO 21448?

ISO 21448 Competitor Technologies

UL 4600

UL 4600 is a standard for the safety evaluation of autonomous products. As such, it competes directly with ISO 21448 (SOTIF), which also addresses the safety of autonomous systems but focuses specifically on hazards resulting from functional insufficiencies.

mentioned alongside ISO 21448 in 66% (111) of relevant job posts

ISO 21448 Complementary Technologies

STPA

STPA (System-Theoretic Process Analysis) is a hazard analysis technique that can be used to identify scenarios that can lead to unsafe behavior. This can be used within a SOTIF analysis framework.

mentioned alongside ISO 21448 in 31% (73) of relevant job posts

ISO 26262

ISO 26262 addresses functional safety of electrical/electronic (E/E) systems in passenger vehicles. SOTIF (ISO 21448) complements ISO 26262 by addressing hazards due to intended functionality or performance limitations, while ISO 26262 focuses on malfunctions. Therefore, ISO 26262 is complementary because SOTIF addresses situations not covered by ISO 26262.

mentioned alongside ISO 21448 in 4% (431) of relevant job posts

IEC 61508

IEC 61508 is a basic functional safety standard applicable to a wide range of industries. Although more generic, it shares similar concepts and techniques with ISO 26262, which SOTIF complements, it is considered complementary.

mentioned alongside ISO 21448 in 5% (173) of relevant job posts