Joe and my first comparison looked at the comparison originating in 15288. I see a few things here: * Some impactful activities happen outside the described stages * Terminology is not consistent * if page size of the stage is important, these are also inconsistent \\ As we progress in detailing the meaning of the suggested phases, I expect there will be more commonality than is first implied. (click on it for a more readable size\\ {{ :wiki:iso-15288-2015_slc-comparison.jpg?600 |}}\\ The latest reference found for the DOE is [[https://www.energy.gov/sites/prod/files/cioprod/documents/SEM3_1231.pdf|DOE Systems Engineering Methodology V3]] from 2002.