.. _model-surrogate-ensemble-ordered_model_fidelities-correction-second_order:

""""""""""""
second_order
""""""""""""


Specify that truth values, gradients and Hessians must be matched.


.. toctree::
   :hidden:
   :maxdepth: 1



**Specification**

- *Alias:* None

- *Arguments:* None


**Description**


The correction specification specifies that the approximation will be
corrected to match truth data. The keyword ``second_order`` matching
ensures that truth values, gradients and Hessians are matched.


