A Practitioner’s Introduction to Job Order Costing (JOC)

If Activity‑Based Costing explains why cost happens, Job Order Costing shows us exactly how it accumulates to the work we do every day. By following cost from resources to activities and into individual jobs, we start to see how requests, deployments, and even model inferences carry different costs, and why that matters for real-world decision making in cloud, platforms, and AI.