What step in an FTA involves identifying the logical relationships between events?

In a Fault Tree Analysis (FTA), identifying the logical relationships between events is a fundamental step that ensures a clear understanding of how different events contribute to the failure of a system. This step allows you to establish causal connections, showing how primary events lead to secondary events and ultimately to the top event or system failure.

This process often involves defining the types of logical gates (like AND and OR gates) that connect the events, which are crucial for modeling and analyzing the system's reliability. By thoroughly identifying these relationships, you form a structured representation of how various components interact, thus providing insights into potential failure points and system vulnerabilities.

Effectively, this step is pivotal in building an accurate fault tree that can be used for further analysis—such as adding probability information later—highlighting its critical role in the overall FTA process.