This document defines proof of concept KPI/performance measurement activities for main 6GBrains user cases which are defined in D2.1. The test cases are defined in two classes depending on whether its aim is the measurement interest is real-life or whether it requires full configuration of 6G BRAINS system. Each test case defines the test purpose, required equipment, preconditions, configurations, methodology and expected results. The final test configuration or methodologies could be subject to potential unforeseen implementation adjustment due to cost or feasibility reasons. However, 6G BRAINs KPI/performance measurement activities will refer to this document as the guideline.