1) Establish scope and ownership

• Define cloud accounts, environments, and services in scope.
• Assign roles:
  • Finance (budget, forecasting)
  • Engineering (usage, optimization)
  • Leadership (accountability)
• Define cost ownership model (team, product, or service-based).

2) Standardize cost structure (foundational)

• Create a tagging/labeling policy:
  • owner, environment, service, cost_center
• Enforce tagging via IaC and policy controls.
• Map cloud billing exports into a unified schema (per account, per service).

3) Enable cost data ingestion

• Activate detailed billing exports (hourly or daily granularity).
• Centralize into a data platform (e.g., data warehouse).
• Normalize:
  • Currency
  • Regions
  • Resource types

4) Build cost visibility layer

• Create dashboards:
  • Total spend by service/team
  • Unit costs (e.g., cost per request, per user)
• Define baselines:
  • Historical trends
  • Expected usage patterns
• Set anomaly detection thresholds.