# Basic Usage of GetFEM¶

A GetFEM structure can be summarized as follows

A program using getfem will often have the following structure

... define one or more Mesh

... define one or more MeshFem

... define one or more MeshIm

... define a Model and set it up:

Model.add_fem_variable(MeshFem, "some variable name")

Model.add_fem_variable(MeshFem, "another variable name")

Model.add_fem_data(MeshFem, "some data name")