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Design of Experiments (DOE): When to use it

The Quality Toolbook > Design of Experiments (DOE) > When to use it

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

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When to use it

• Use it when investigating a situation where there are many variable factors, one or more of which may be causing problems.
• Use it when variable factors may be interacting to cause problems.
• Use it when testing a solution, to ensure that there are no unexpected side-effects.
• Use it when there is not the time or money to try every combination of variables.

Fig. 1. Using Design of Experiments in problem solving

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