CHAPTER 19 · Production ML and MLOps This chapter contains the following subtopics: 01 · Data Versioning and Lineage 02 · Experiment Tracking and Reproducibility 03 · Feature Stores and Data Contracts 04 · Model Serving and Inference Optimization 05 · Monitoring Drift and Retraining 06 · LLM Evaluation Observability and Guardrails ← Previous 05 · Human in the Loop and Monitoring Next → 01 · Data Versioning and Lineage