# ADVOPS01-BP03 Establish performance metrics by defining key performance indicators (KPIs) and service-level objectives (SLOs)
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 Establishing a comprehensive set of operational performance metrics is critical in an advertising workload. It helps organizations to measure, monitor, and validate the performance of the advertising operations. 

## Implementation guidance
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 Define operational KPIs and establish SLOs. For example, consider the following example criteria: 
+  **Ad serving:** Ad serving latency 
+  **Infrastructure maintenance:** System uptime, maintenance task completion rate, incident response time 

## Key AWS services
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+  [Amazon CloudWatch](https://aws.amazon.com/cloudwatch/) 

## Resources
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+  [Improve application reliability with effective SLOs](https://aws.amazon.com/blogs/mt/improve-application-reliability-with-effective-slos/)