This section describes how e-waste flows are measured in a harmonized framework. E-waste generated is calculated based on sales data, import/export data, product lifespan, and discarding probabilities. The methodology allows for international comparison by linking country data to standardized product categories and statistical corrections. Key outputs include the amount of e-waste generated per country, year, and product type. This framework provides an unprecedented level of accuracy and harmonization in measuring global e-waste quantities.