Assessment, COAT. The report describes the project background and the state of methodology development after two years. The methodology consists of a framework of processes, tools and methods suitable for assessment of radio communication systems in both tactical and operational context. Furthermore, we give an account for experiences made in a case study using the methodology on a commercial communication system operating in a military scenario. We then report our conclusions from both the methodology development and the case study. Finally we give a short presentation of the measures to be taken during the forthcoming development of the methodology A key observation is that the knowledge of how to perform an assessment is to a large extent an aquired skill that must be trained and practiced, preferably with the help of a mentor. The goal of the project, to develop skills and develop methodology for assessments, is in all essential met even though detailed development and testing remains. The competencies that have been established can already today be used for assessments of e.g., functionality, services, and degree of vulnerability, in various radio communication systems currently in use or in the fielding phase in the Swedish Armed Forces.