Overview

The Cost Optimization pillar of the Alibaba Cloud Well-Architected Framework provides design principles and best practices for managing cloud expenditure efficiently—without sacrificing performance, security, compliance, or reliability.

As workloads scale and architectures grow more complex, cloud spending often drifts from intent. Resources get over-provisioned, unused capacity accumulates, and costs become difficult to attribute across teams. The result: inflated bills with limited visibility into where the money is going.

Cost optimization is not about finding the lowest price. It is a discipline of intentional trade-offs—selecting the right resources, billing models, and architectural patterns to meet business goals at an appropriate cost. This requires ongoing effort across the entire cloud adoption lifecycle, not a one-time review.

This pillar covers:

• Financial planning: Establish budgets, forecast spend, and align cloud investment with business objectives.

• Cost visibility and allocation: Tag resources, build cost views, and attribute spend to the teams and workloads that generate it.

• Proactive monitoring: Set up alerts and anomaly detection to catch cost spikes before they escalate.

• Service and billing model selection: Choose the right Alibaba Cloud services and pricing options—such as pay-as-you-go, subscription, or savings plans—for each workload's usage pattern.