Abstract: The invention relates to a process of detecting check sequences in a situation recognition system, composed of a list of events and time constraints. For each check sequence, a sequence of events and intervals between possible dates of occurrence of each of these events is created in memory. The process manages an internal clock differing from universal time, representing the current date of the system, updates the sequences of events for each situation upon each occurrence of a new event. This causes an updating of the current date, an updating for each sequence of events memorized of the intervals between possible dates of occurrences, detection of all the sequences of events for which one of these intervals is empty, creation of new sequences of events integrating this new event, and a detection of complete sequences.