Global hybrid model
  
    - "Global" approach with subsystem components:
      
	- looks like hybrid decomposition
 
	- components for "swinging" and "falling"
	  configurations
 
	- SystemSwitch
	  
	    - alternatively activates one or the other
	      system
 
	    - contains the event functions
 
	    - computes the initial state at a system change
 
	  
	 
      
     
    - Generic SwitchableSystem:
      
	- defines
	  
	    - internal state vector
 
	    - output of current state
 
	    - active input ("enable")
 
	    - input of initial state when enabled
 
	  
	 
	- process activation event
 
	- "freeze" output if disabled