Can you list the main categories of metrics used to evaluate systems or processes?

Main categories of metrics for evaluating systems or processes:

• Performance — response time, throughput, delays.
• Reliability — number of failures, mean time between failures (MTBF).
• Availability — percentage of time the system is available to users.
• Resource Utilization — CPU load, memory, disk, network.
• Security — number of incidents, vulnerabilities.
• Quality — number of errors, defects.
• Process Efficiency — execution time of processes, costs.

For example, performance and availability metrics are important for a web service, while efficiency and quality are crucial for a business process.