msc {

hscale = "1.5";

 #Entities
  app, loader, component_factory, traffic_ctlr;

  #Arcs
  app => loader [label = "get_trafficgen_class()"];
  loader note loader [label = "searches TRAFFICGEN_DIR for classes implementing ITraffic and matching name configured as TRAFFICGEN"];
  app << loader [label = "TrafficGenClass"];
  app => component_factory [label = "create_traffic(traffic_type, TrafficGenClass"];
  component_factory note component_factory [label = "Component Factory maps from a traffic_type (string) to a TrafficController class"];
  component_factory => traffic_ctlr [label = "create()"];
  app << component_factory [label= "traffic_ctlr"];
 }