A figure of merit is a quantitative metric employed to assess the performance or efficiency of a system, technology, or process within a specific context. It serves as a standardized measure for comparison, facilitating the evaluation of different solutions. Depending on the application, figures of merit vary; for instance, efficiency gauges the ratio of useful output to input in energy systems, while Signal-to-Noise Ratio (SNR) measures communication signal quality. Cost-effectiveness and sensitivity are additional figures of merit used to evaluate economic efficiency and the responsiveness of sensors, respectively. These metrics provide a structured and comparative framework, aiding decision-making processes across diverse fields by offering a common ground for performance assessment.
