Which pillar of the AWS Well-Architected Framework focuses on the ability to run workloads effectively, gain insight into operations, and continuously improve supporting processes and procedures?

Explanations:

Cost optimization focuses on managing costs to maximize value while minimizing expenditure. It does not address operational effectiveness or continuous improvement.

Reliability pertains to the ability of a system to recover from failures and continue functioning, but it does not specifically address the continuous improvement of processes.

Operational excellence is centered around the ability to run workloads effectively, gain operational insights, and continuously improve processes and procedures, making it the correct choice.

Performance efficiency involves using resources efficiently and scaling workloads appropriately, but it does not focus on the operational insight and continuous improvement aspects highlighted in the question.