HAZOP analysis

Failures and constellations of a system or subsystem that are foreseeable must not have a dangerous effect over its entire life cycle - this is a basic principle for safety-relevant systems.

HAZOP analyses can be used to identify as many hazards as possible in advance. Hazard in the sense of HAZOP refers to a situation in which there is an actual or potential threat to people or the environment that could lead to an accident.

• Analysing situations that can be caused by the system and situations that can affect the system from the environment
• Analysing possible errors, e.g. control errors, development errors or errors due to mechanical wear (poor maintenance) and failure of electronic components

• Support in forecasting possible events, finding causes, estimating effects and defining countermeasures
• Classification of all possible errors according to:
  Error source: development errors / runtime errors
  Error type: permanent / sporadic / conditional errors
  Range: value / time / unsolicited actions
• Design and analysis of possible scenarios