How do you ensure end-to-end lineage and reproducibility for a production model (for debugging and audit)?

When a model regresses or an auditor asks 'how was this built,' guessing is a failing answer. What matters is tracking the entire chain so any model can be reproduced and any past decision explained. Here is the chain.

Updated Sep 2026 · Grounded in real GenAI, LLM, and AI/ML engineering interview loops and written to a senior-engineer editorial bar.