Productivity

At Meta, a diff is a pull request and DAT focuses on the inner development loop – the writing, building, testing, and debugging of code. The tech giant emphasizes diffs should be kept small and reviewable, which, in part, accounts for its average DAT of 50 minutes across 87% of available diffs.

I feel like it’s the continuous application of scientific management (Taylorism) here that fall short. Gallup has found time and again that effective workers have a lot more to do with environment than DATs..

Though each experiment is noisy, when data is combined across three experiments and 4,867 developers, our analysis reveals a 26.08% increase (SE: 10.3%) in completed tasks among developers using the AI tool. Notably, less experienced developers had higher adoption rates and greater productivity gains. … We find that Copilot significantly raises task completion for more recent hires and those in more junior positions but not for developers with longer tenure and in more senior positions.