| Task: Manage Safety and Reliability Requirements |
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| This task creates hazard analysis and derives safety and reliability requirements. |
| Disciplines: Development |
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Purpose
| The purpose of this task is to identify and clarify the safety and reliability issues of the system for the purpose of
identifying relevant safety and reliability requirements. |
Relationships
| Roles | Primary Performer:
| Additional Performers:
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| Inputs | Mandatory:
| Optional:
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| Outputs |
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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
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Study hazard analysis
| The hazard analysis summaries the hazards, faults, risks, and safety/reliability measures. |
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. |
Identify safety and relaibility measures
| Safety/reliability measures are design or analysis elements that decrease risk by either obviating the hazard, reducing its
likelihood or reducing its severity. |
Update hazard analysis
| This step updates the hazard analysis with results of the safety and reliability analysis. |
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More Information
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