Task: Perform Initial Safety and Reliability Analysis
This task creates performs initial safety and reliability analysis and captures the results in a hazard analysis document.
Purpose
The purpose of this task is to identify and clarify the initial safety and reliability issues of the system for the purpose of identifying relevant safety and reliability requirements.
Relationships
RolesPrimary: Additional: Assisting:
InputsMandatory: Optional:
  • None
External:
  • None
Outputs
Main Description
The hazard analysis is a key document that captures hazards, risks, faults, and control measures together. The control measures mitigate the risks and so must be captured as requirements on the system to manage the risks to an acceptable level.
Steps
Create initial hazard analysis
The hazard analysis is a key document that captures hazards, risks, faults, and control measures together. The control measures mitigate the risks and so must be captured as requirements on the system to manage the risks to an acceptable level.
Identify hazards
Hazards are conditions to avoid. Hazards are analyzed using Fault Tree Analysis and/or Failure Means and Effect Analysis.
Quantify risks
Risk is the product of the severity of a hazard and its likelihood.
Peform Fault Tree Analysis
FTA analyses how faults and conditions interact to produce hazards.
Perform Failure Modes and Effect Analysis
FMEA looks at how failures accumulate to produce undesirable conditions (hazards).
Peform Threat Analysis
Threat analysis examines the important assets of the system, the vulnerabilities they exhibit, and the countermeasures put into place to protect them.
More Information
Guidelines

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