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Fractional Factorial is a form of Design of Experiments that enables operators to observe the changes occurring in the output (Y Response,) of a process while changing more than one input (X Factors) without running every single potential treatment combination. This test highlights shifts in the average response or output associated with multiple factors with less time and effort than required for a full factorial experiment.  It has a diminished ability to evaluate how factors in a process might interact.

An example would be to test the cycle time (Y) to cook a pizza in different ovens (X1), at different temperatures (X2), and with different toppings (X3) without running every single combination of the three factors.

For a better understanding of DOE – Fractional Factorial, check out our Black Belt Training & Certification Course!

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