This section provides access to technico-economical models that enable the calculation of productivity for different mining and development methods. In addition, other utilities are provided: a model to evaluate in-stope dilution and dilution in development, as well as a few others on rail and pneumatic performance. The goal of these technico-economical models is to calculate realistic productivity from data collected on-site. It is important to note that all models use the software “Excel” in order to obtain a large number of users.