When designing real-time systems, one issue is to grant that the system will always behave properly within the expected time constraints. By capturing the design choices in Capella (periodic/sporadic events, precedence relation between tasks, network communication between resources, mutual exclusion resources, etc.), Tideal viewpoint not only allows to compute the worst-case execution time for end-to-end flows traversing the system but also provides some feedback to the architect to better understand the temporal behavior of the system. Benoit Viaud, Artal Benoit Viaud leads Artal’s System Engineering unit. He initiated the creation of Citrus, a one-stop-shop engineering framework for simulation and is deeply involved in its deployment in Airbus. He also carries out coaching and consulting activities around Capella.