Performance Efficiency

Performance Efficiency is a quality characteristic that measures how well a system performs its functions under a given workload. It's about ensuring the application is responsive, stable, and uses resources effectively, avoiding delays or bottlenecks that can frustrate users.

Example: For a retail website, the Performance Efficiency of the checkout process would be measured by how quickly a user can complete their purchase. If the checkout page takes longer than 5 seconds to load during a peak sale period, it is considered a performance inefficiency. The goal is to optimize the system so it can handle the expected traffic without slowing down, maintaining a smooth user experience even under heavy load.