.. only:: comment © Crown-owned copyright 2023, Defence Science and Technology Laboratory UK Simulation Strucutre ==================== The simulation is made up of many smaller components which are related to each other in a tree-like structure. At the top level, there is an object called the ``SimulationController`` _(doesn't exist yet)_, which has a physical network and a software controller for managing software and users. Each node of the simulation 'tree' has responsibility for creating, deleting, and updating its direct descendants.