Key concepts

This section presents the key concepts required to have a good understanding of OpenFisca, without being too technical.

The first entries are dedicated to the definitions of the structure of OpenFisca:

• Tax and Benefit System as the matrix of the software
• Variables
• Parameters
• Person, entities, role
• Periods, Instants

Input Data Section gives an insight on the data used to compute in OpenFisca.

• Input Data

Last sections present different applications of OpenFisca.

• Simulation, Computation
• Reforms

We use the French legislation to illustrate these concepts as it is the only actively maintained country for now. French names are kept as it is.