Open Source Systems 15th IFIP WG 2.13 International Conference, OSS 2019, Montreal, QC, Canada, May 26-27, 2019, Proceedings - Bordeleau, Francis; Bordeleau, Francis; Sillitti, Alberto; Sillitti, Alberto; Meirelles, Paulo; Meirelles, Paulo; Lenarduzzi, Valentina; Lenarduzzi, Valentina (Springer International Publishing : Imprint: Springer, 2019)