This report describes the development of two human factors tools for measuring Situation Awareness (SA) in Air Traffic Management (ATM) systems. The measures are primarily concerned with controllers. SA when using computer-assistance tools and other forms of automation support, which are expected to be major components of future ATM systems. The report has been prepared as part of the Solutions for Human-Automation Partnerships in European ATM (SHAPE). Project being carried out by the ATM Human Resources Unit of EUROCONTROL, later renamed Human Factors and Manpower Unit (DIS/HUM) and today known as Human Factors Management Business Division (DAS/HUM).