Hazard analysis and risk assessment
The hazard analysis and risk assessment is conducted at the start of the development process for systems with safety goals. Requirements are defined here for development. In contrast to the FMEA, the failure of components and systems does not play a role here. The result of the hazard analysis and risk assessment is an ASIL classification (QM, ASIL A, ASIL B, ASIL C).
ISO 26262 and ISO 25119 / DIN EN 16590 specify a structured procedure for a “Hazard analysis and risk assessment (HARA)” in order to be able to determine for a system whether it is a safety-relevant system and, if so, how high the degree of safety relevance is.
Based on a combination of:
- The frequency of the occurrence of a hazardous situation (exposure),
a procedure is defined in order to be able to determine the ASIL (Automotive Safety Integrity Level) in the automotive sector and an AgPL (Agricultural Performance Level) within agriculture and forestry.