Hazard

A Hazard is a potential source of harm. According to the automotive functional safety standard ISO 26262, it is specifically defined as a "potential source of harm caused by malfunctioning behaviour of the item." It represents the foundational input for the entire safety lifecycle. A hazard is distinct from risk; a hazard is the source of potential harm (e.g., brake failure), whereas risk is the combination of the probability of that harm occurring and its severity. In the risk management framework, Hazard Identification is the very first step of the Hazard Analysis and Risk Assessment (HARA) process. Failing to correctly identify all relevant hazards undermines the entire safety case.

In practice, enterprises apply hazard analysis by following the Hazard Analysis and Risk Assessment (HARA) process outlined in ISO 26262. The process involves three key steps. First, Hazard Identification: Systematically identifying vehicle-level hazards using methods like FMEA (e.g., "unintended acceleration"). Second, Situational Analysis: Defining the operational scenarios where the hazard could manifest (e.g., "driving on a highway"). Third, Hazardous Event Classification: Combining the hazard and situation, then classifying its Severity (S), Exposure (E), and Controllability (C) to determine the Automotive Safety Integrity Level (ASIL). For example, an ADAS developer identified "false positive braking" as a hazard, which was assigned ASIL B after HARA, enabling efficient safety mechanism design and ensuring compliance.

Taiwan's automotive enterprises often face three key challenges when implementing hazard analysis. First, a competency gap, with a shortage of engineers experienced in the systematic safety thinking required by ISO 26262. Second, resource constraints, as smaller suppliers may lack the budget for specialized HARA software tools and comprehensive failure rate databases. Third, supply chain complexity, where unclear communication with OEMs about safety goals can lead to misaligned analyses. To overcome these, companies should prioritize investing in certified functional safety training, adopt standardized templates for the HARA process, and establish a clear Development Interface Agreement (DIA) with partners at the project's outset to define roles and responsibilities.

Winners Consulting specializes in Hazard for Taiwan enterprises, delivering compliant management systems within 90 days. Free consultation: https://winners.com.tw/contact