Lessons Learned from a Lean R&D Project. - Bianca Rodrigues Teixeira; Bruna Ferreira; André Luiz Brandão de Damasceno; Simone D. J. Barbosa; Cassia Novello; Hugo Villamizar; Marcos Kalinowski; Thuener Silva; Jacques Chueke; Hélio Lopes 001; André Kuramoto; Bruno Itagyba; et al. (ICEIS (2), 2021)