Failure Tree Analysis (FTA) is a systematic method for identifying and analyzing the causes of possible failures in a system. FTA uses a graphical model called a fault tree to represent the relationship between an undesirable event (top event) and the root causes (root causes).
The main features of FTA are:
Hierarchical structure: representation of faults in a tree-like hierarchy, starting with the top event and branching out to the root events.
Cause-effect analysis: Investigation of the causal relationships between different events and states.
Qualitative and quantitative analysis: Assessment of the probability and impact of errors in order to identify and evaluate risks.
Preventive measures: Development of measures to avoid or mitigate the identified risks.
The benefits of FTA include:
Risk assessment: identification of potential vulnerabilities and risks in a system.
Process improvement: Support in the development of strategies to prevent errors and improve system reliability.
Documentation: Provision of clear and structured documentation of the causes of errors and their correlations.
