Hazard analysis techniques Flashcards
What is FRAM?
Functional resonance analysis method
Elements of FRAM?
- Equivalence of success and failures
- Approximate adjustments
- Emergent outcomes
- Functional resonance
STAMP elements
Elements:
controller
process model
control actions feedback
controlled process
6 components of FRAM
components:
Time Control
Input Output
Precondition Resources
Define risk management
coordinated activities to direct and control an organization with regard to risk
Define risk
The effect of uncertainty on objectives (ISO)
Fault tree analysis elements
Define threat
a person or thing likely to cause damage, danger or increase a risk of something unwanted occurring
Risk calculation(s)
Risk = threat * probability * consequence
What is a hazard?
A process, phenomenon or human activity that may cause loss of life, injury or other health impacts, property damage, social and economic disruption or environmental degradation.
Hazard types
- Natural hazards: natural processes and phenomena
- Anthropogenic hazards: human activities and choices (‘man-made’)
- Socionatural hazards: combination of natural and anthropogenic factors
Define vulnerability
The conditions determined by physical, social, economic and environmental factors or processes which increase the susceptibility of an individual, a community, assets or systems to the impacts of hazards.
or
A weakness of an asset or group of assets that can be exploited by one or more threats where an asset is anything that has value to the organization, its business operations and their continuity, including information resources that support the organization’s mission.
Define threat
A potential cause of an incident, that may result in harm of systems and organization.
Define risk
The potential loss of life, injury, or destroyed or damaged assets which could occur to a system, society or a community in a specific period of time, determined probabilistically as a function of hazard, exposure, vulnerability and capacity.
(It is important to consider the social and economic contexts in which disaster risks occur and that people do not necessarily share the same perceptions of risk and their underlying risk factors.)
Bowtie method
Hazard
|
threat - barrier (multiple?) - Event - recovery barrier (multiple?) - consequence
eg
acid corrosivity
| lab distraction - admin and eng controls to maintain focus - acid spill - eyewash/shower - burning student
lack of PPE - PPE well stocked - acid spill - spill kits - destruction of lab equipment
