01
Introduction to LOPA in BowTiePro | BowTie Pro
LOPA (Layer of Protection Analysis) is a risk assessment method used to evaluate whether sufficient protection layers exist to reduce risk to an acceptable level. ...
02
Creating a New LOPA Assessment in BowTiePro | BowTie Pro
BowTiePro allows users to create LOPA (Layer of Protection Analysis) assessments directly from existing hazards, threats, and consequences defined within BowTie diagrams. Each LOPA assessment...
03
How to Access the LOPA Module in BowTiePro | BowTie Pro
The LOPA (Layer of Protection Analysis) module in BowTiePro allows users to create and manage quantitative risk assessments linked to hazards, threats, and consequences. Users...
04
Understanding Threat Frequency in BowTiePro LOPA | BowTie Pro
BowTiePro uses Threat Frequency values in LOPA assessments to estimate how often a threat is expected to occur before safeguards and protection layers are applied....
05
Adding Enabling Factors in BowTiePro LOPA | BowTie Pro
Enabling factors in BowTiePro are conditions or circumstances that increase the likelihood of a threat occurring. These factors are linked to threats within a LOPA...
06
Adding Condition Modifiers in BowTiePro LOPA | BowTie Pro
Condition modifiers in BowTiePro are factors that influence the likelihood or effectiveness of risk scenarios within a LOPA (Layer of Protection Analysis) assessment. These modifiers...
07
Configuring Control PFD Values in BowTiePro LOPA | BowTie Pro
In BowTiePro LOPA assessments, controls are assigned PFD (Probability of Failure on Demand) values to calculate how effective a safeguard is at reducing risk. PFD...
08
Understanding Overall Consequence Values in BowTiePro | BowTie Pro
In BowTiePro LOPA assessments, the overall consequence value represents the final calculated risk associated with a specific consequence after considering threats, controls, enabling factors, and...
09
Reading LOPA Results in BowTiePro | BowTie Pro
After configuring threats, controls, enabling factors, and condition modifiers, BowTiePro calculates the final Layer of Protection Analysis (LOPA) results. These results help users determine whether...
10
Understanding Acceptance Criteria and SIL Levels in BowTiePro | BowTie Pro
Acceptance criteria and Safety Integrity Levels (SIL) are important concepts within Layer of Protection Analysis (LOPA). BowTiePro uses these concepts to help organizations determine whether...
