Fault Tree Diagram in Excel
Fault Tree Diagrams take reliability block diagrams one step further by adding logic symbols (and/or) to connect the blocks. (Similar to root cause analysis.)
How to Create a Fault Tree Diagram.
- Taking a failure event that occurred, analyze that event (ask why?)
- List failures, events, or conditions that had to exist to cause the failure.
- Use logic symbols to connect the causes (e.g., this and that cause the failure.)
Sample Fault Tree Diagram