Tag: cloud-financial-management

Most AWS cost forecasts miss by 30–50% not because engineers are careless, but because the forecasting model does not match how AWS actually charges. This is the playbook for getting forecasts right: which metrics to measure, which models to use, and where the structural gaps are.

The most expensive AWS architectures are not the ones that use the most resources — they are the ones whose costs respond unpredictably to inputs. This is the design discipline for building systems where costs are structurally bounded and forecasting is accurate.