Pereira, Thiago dos SantosVicente, João Gabriel2025-04-232025-04-232025-02-27https://repositorio.uel.br/handle/123456789/18720The cosmic isotropy hypothesis has been subjected to scrutiny in the past few decades. Observational data favors it, but small levels of intrinsic geometric anisotropies cannot be ruled out yet. As probes become more precise, new tools are required to perform this analysis. In this context, we introduce two programs, AniCLASS and AniLoS, that compute the effects of a class of homogeneous cosmological models in the Cosmic Microwave Background through the Line-of-sight integral approach. The software is based on the matching of Bianchi models with homogeneous FLRW metric perturbations. In this work, we review all the methods on which the programs are based: the physics of perturbation theory in FLRW, the dynamics of linearized Bianchi models and their connection to FLRW perturbations, and the evolution of the Cosmic Microwave Background photons. We also provide a summary of their structure and outputs. The tools proposed here pave the way for exploring the universe’s geometry using data from the next generation of Cosmic Microwave Background probes.engCosmologyIsotropy testingBianchi modelsCosmic Microwave Background (CMB)Boltzmann equationLine-of-sight integralComputer softwareGeometryToolsUniverseDissertaçãoCiências Exatas e da Terra - FísicaCiências Exatas e da Terra - FísicaCosmologiaTestes de isotropiaModelos de BianchiRadiação Cósmica de FundoEquação de BoltzmannIntegral na linha-de-visadaSoftwareGeometriaFerramentasUniverso