EPISTEMOLOGICAL ASPECTS ON THE VALIDATION OF COMPUTATIONAL MODELS IN COSMOLOGY

Simulation models are closely linked to the results got from observational means, achieving their validation in different ways. Thus, cosmological simulations lead to the generation of contrast models, which allow comparison between simulated data with those achieved by the traditional way. Since there is not a single validation protocol, practices are heterogeneous. One of the strategies has to do with validating simulations initially through observational data, another one achieves validation according parametrization with new data available. Since observational data and simulated data can be compared to each other, they share eventually the same epistemic level or status. Consequently, observations via simulations are feasible. From the contrast models achieved, it is possible to conclude by saying that the use of horizontal validation techniques among simulations is viable, in particular, between the standard cosmological model and alternative models.