SIX SIGMA Glossary: L Simplex Designs

The L Simplex Design is a type of mixture design. The L Simplex design is used when there are constraints on the proportion of constituents, but those constraints still allow the experimental region to be represented as a triangle:

l simplex design

If the experimental region cannot be represented as a 'triangle' an extreme vertex design is used.

Note that a mixture design can have any number of constituents but it is convenient to illustrate the design as a mixture with three ingredients. This gives a triangle in which each corner represents one of the ingredients.

The Design of Experiments is covered in the MiC Quality basic Design of Experiments course and Advanced Design of Experiments course.

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