Hardware hazard identification

The framework to be described later in this chapter can be seen as a complementary procedure to hardware orientated hazard identification procedures. Ideally, the two approaches should be applied in parallel to a plant evaluation, in order to benefit from the synergy of considering both perspectives. 

The determination and documentation of the method to be used for hazard identification and safety analysis in determination of the system integrity requirements and their subsequent apportionment to the system components, hardware software and data. 

The primary purpose of HA is to identify hazards and to obtain sufficient hazard data for risk assessments. HA is applied to hardware, software, functions, procedures, and human tasks. HA can be applied at all stages of the system life cycle the HA process becomes more detailed and accurate as more information about the system becomes available. Different HA techniques and approaches to hazard identification may be required at different stages of the system life cycle to ensure aU types of hazards are identified. HA involves ... 

Perform SHA to identify hazards. Identify both hardware and software causal factors. The software causal factors lead to design mitigation requirements in the form of SSRs. This step also leads to the identification of SCLs, which will impact the LOR tasks performed by the software... 

However, during the course of the identification of hazards, several items were identified which are risk important. HARDWARE... 

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