5. Plan according to Scheffé's Simplex networks

5.1 Conditions for using this plan

In this scheme, the values of the factors studied are proportions of each component of a mixture, and their sum is therefore equal to 1. In this work, we present Scheffé models, which differ according to the degree of interaction considered.

Among the authors who have developed or simply written about this plan: Phan-Tan-Luu and Mathieu [10] ; Sado and Sado [11] ; Scheffé [12][13] ; Sergent, Mathieu and Phan-Tan-Luu [15]