Benchmarking is a process of comparing performance metrics and business practices to the best performers and using that information to improve performance. There are two main types: internal benchmarking within an organization, and external benchmarking which involves comparing to other organizations. Benchmarking provides benefits like overcoming resistance to change and opening organizations to new ideas. Some common areas benchmarked in healthcare include clinical processes, business functions, and support services. While there are costs, benchmarking is a valuable technique for continuous quality improvement.