According to the CTSC Exam Content Manual, metrics decomposition is the analysis of indicators of supply chain performance from level 1 through 3 in the SCOR model1.Metrics decomposition helps to identify the root causes of performance gaps, prioritize improvement opportunities, and align metrics across different levels and processes1.The SCOR model defines four levels of metrics: level 1 metrics are strategic, cross-functional, and end-to-end; level 2 metrics are tactical and process-specific; level 3 metrics are operational and sub-process-specific; and level 4 metrics are transactional and implementation-specific2.Metrics decomposition is different from metrics attribution, which is the assignment of metrics to the responsible parties or processes1.Metrics decomposition is also different from performance cascading, which is the translation of strategic objectives into operational goals and metrics1. Performance classification is not a term used in the SCOR model.