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This classification helps defining the safety requirements necessary to be in line with the ISO 26262 standard. The ASIL is established by performing a risk analysis of a potential hazard by looking at the Severity, Exposure and Controllability of the vehicle operating scenario. The safety goal for that hazard in turn carries the ASIL requirements.
Automotive Safety Integrity Level refers to an abstract classification of inherent safety risk in an automotive system or elements of such a system. ASIL classifications are used within ISO 26262 to express the level of risk reduction required to prevent a specific hazard, with ASIL D representing the highest hazard level and ASIL A the lowest.
ASIL accuracy describes the maximum possible deviation of a measurement in a system in which a single point fault occurred before some diagnostic detects this fault. This concept applies to automotive systems designed under the ISO-26262 methodology for automotive functional safety, which defines Automotive Safety Integrity Levels (ASILs) to classify risks.
A device or system must meet the requirements for both categories to achieve a given SIL. The SIL requirements for hardware safety integrity are based on a probabilistic analysis of the device. In order to achieve a given SIL, the device must meet targets for the maximum probability of dangerous failure and a minimum safe failure fraction.
A SIL (or PL, AgPL, ASIL) applies to an end-to-end safety function of the safety-related system, not just to a component or a part of the system. Ensuring the safety function performs to the design intent, including under conditions of incorrect operator input and failure modes.
Asil, Arabian horses who have pedigrees that can be traced to identifiable desert-bred horses from the Middle East; Asil chicken, a breed of chicken; Asil Kara, a synonym for the wine grape variety Băbească neagră; ASIL Lysi, a Cypriot football club; Automotive Safety Integrity Level (ASIL), a risk classification scheme
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Software classification is based on the potential for hazard(s) that could cause injury to the user or patient. [1] Per [[IEC 62304|IEC 62304:2006] + A1:2015], the software can be divided into three separate classes: The SOFTWARE SYSTEM is software safety class A if: the SOFTWARE SYSTEM cannot contribute to a HAZARDOUS SITUATION; or