Abstract: Situation awareness is created through the dynamic process of perception and action and serves as a foundation of overall performance throughout many different domains, such as education, military operations, air traffic control, driving, search and rescue, and crisis management [Endsley, 2006]. Information sharing is an important factor to be consider in situation awareness. In this paper, we present how tools can support information sharing in crisis management. So, we study how crisis management team dealt with two exercises using firstly whiteboards and secondly, CRIMSON a digital decision support tool.