1. The document discusses key performance indicators for measuring postal performance using a balanced scorecard framework, including measures related to customers, operations, and financials. 2. Operational performance is measured across indicators like service, costs, efficiency, and profitability, which are reflected at different network levels and influenced by network elements. 3. The document provides many examples of specific metrics that can be used to measure performance across these areas, like delivery times, costs per piece, asset utilization, and revenue per customer.