Which of the following best defines Key Performance Indicators (KPIs)?

Key Performance Indicators (KPIs) are metrics that organizations use to assess their success in reaching specific objectives. They are quantifiable measures that provide insight into how effectively a company is achieving its key business goals. KPIs can vary widely depending on the organization and its strategic priorities, but they are fundamentally about measuring performance against a target.

While time-based measurements, standards for evaluation, and methods for process analysis may be components or related aspects of performance evaluation, they do not fully encompass the definition of KPIs. KPIs specifically focus on the quantification of performance to determine success in a way that aligns with the organization’s strategic goals, making "a metric used to determine success" the most accurate definition. By tracking KPIs, organizations can make informed decisions and guide their operations towards improved performance and strategic alignment.