Fault Tree Analysis: Practical variations

The Quality Toolbook > Fault Tree Analysis > Practical variations

When to use it | How to understand it | Example | How to do it | Practical variations

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Practical variations

• Start by finding how individual items in a system can fail, and then build an FTA diagram bottom-up, to show how they might act in combinations to cause an overall system failure.
• Write the failures on 3" x 5" cards or adhesive memo notes, so they can be rearranged into the best order on the diagram.
• Make symbols easier to visually differentiate by writing 'AND' or 'OR' in them, as appropriate.

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