The SEI work has been around a long time and it has had very limited success outside of academic or very controlled settings. It had its heyday in the late 90s

The SEI work has been around a long time and it has had very limited success outside of academic or very controlled settings. It had its heyday in the late 90s but never really caught on broadly because it is impractical to collect the level of detail necessary, with consistent teams, languages, environments, and practices in a fast moving computing environment.