Erick Sales, Clauber Pereira, Sábia Oliveira, and Léia Sousa. 2025. DEAF: A Tool for Data Query and Analysis in SAMU. In Companion Proceedings of the 21st Brazilian Symposium on Information Systems, May 19, 2025, Recife/PE, Brasil. SBC, Porto Alegre, Brasil, 393-400. DOI: https://doi.org/10.5753/sbsi_estendido.2025.246872.