Software 4.5.4 Module hierarchy ORG PRO PRO 1 4 PRO PRO 3 5 PRO 2 KUB 1 Fig. 10: Module hierarchy, example Notes on the illustration Ш Hierarchy levels The example above uses all of the 5 available hiearchy levels by linking ORG а PRO 2 а PRO 3 а PRO 4 а PRO 5 Ш Terminating modules KUBES modules (here: KUB 1) are terminating modules. No other modules can be called from there. 67