Persalys can realize sensitivity analyses to determine which **input parameters are influential** on the outputs.

Two types of indices are offered:

**Sobol indices**: these indices are defined from the model ANOVA (analysis of variance). If several outputs are analysed, aggregated Sobol indices are also provided.**SRC indices**(Standard Regression Coefficient)these indices are retrieved by approximating the real model by a first-order linear model.

For more information on how to create a model, refer to the following video: