Which of the following do Service Metrics measure?

Processes and functions are measured by process metrics, not service metrics - these are a distinct metric category in ITIL Continual Service Improvement.

Maturity and cost are not what service metrics measure - maturity is assessed via frameworks like CMMI and cost is tracked through financial management, not service metrics.

Service metrics measure the overall end-to-end service from the customer's perspective, capturing outcomes such as availability and performance across the entire service chain. This differs from process metrics (which measure process efficiency) and technology metrics (which measure individual components). The end-to-end view ensures measurement aligns with business impact and customer experience.

Infrastructure availability is measured by technology or component metrics, which focus on individual CIs rather than the holistic service experience.