A method to assist with decision making, according to which a plurality of information sources, presumed to be useful for analyzing a situation, are recorded in a database of a device, including a digital processing system with display means and interface means in order to perform interactions on information containers and/or on contents of the information containers, presented to the operators in visual form by the display means. Every interaction of an operator with an information container is stored by the digital processing system and is interpreted so as to identify an operation on the corresponding information sources. The device establishes a list of information containers of the database that were not the subject of any interaction during the work session and information sources of the database that were not the subject of any operation during the work session.