SimEvents® extends the Simulink® product with a discrete-event simulation (DES) model of computation. With SimEvents software you can develop activity-based models of systems to evaluate system parameters such as congestion, resource contention, and processing delays. You can configure entities with user-defined attributes, and then aggregate entities and attributes to model data hierarchy and transport in applications such as packet-based networks, mission planning, supervisory control, real-time operating systems, and computer architecture.