Object n1 = model.createNode(_contentionActor);
Object n2 = model.createNode(_alarmActor);
Object n3 = model.createNode(_memoryActor);
Object n4 = model.createNode(_processActor1);
Object n5 = model.createNode(_processActor2);
Object n6 = model.createNode(_processActor3);
model.addNode(this, n1, root);
model.addNode(this, n2, root);
model.addNode(this, n3, root);
model.addNode(this, n4, root);