diff --git a/plugins/pyloader/sgpem.i b/plugins/pyloader/sgpem.i
index 92be7b4..7e36373 100644
--- a/plugins/pyloader/sgpem.i
+++ b/plugins/pyloader/sgpem.i
@@ -145,7 +145,7 @@ namespace sgpem {
 
 
     // --------------------------------------------
-    class SchedulableList 
+    class SchedulableQueue 
     {
     public:
 	unsigned int size() const;
@@ -154,10 +154,10 @@ namespace sgpem {
 	
     private:
 	// Avoid instantiation and copy
-	SchedulableList();
-	SchedulableList(const SchedulableList&);
-	SchedulableList& operator=(const SchedulableList&);
-	~SchedulableList();
+	SchedulableQueue();
+	SchedulableQueue(const SchedulableQueue&);
+	SchedulableQueue& operator=(const SchedulableQueue&);
+	~SchedulableQueue();
     }; //~ class Schedulable
 
     // ---------------------------------------------
@@ -186,7 +186,7 @@ namespace sgpem {
     public:
         sgpem::Policy&             get_policy();
 	static sgpem::Scheduler&   get_instance();
-	sgpem::SchedulableList*    get_ready_queue();
+	sgpem::SchedulableQueue*    get_ready_queue();
     private:
 	Scheduler();
 	~Scheduler();
diff --git a/plugins/pyloader/testsuite/test-python_loader.cc b/plugins/pyloader/testsuite/test-python_loader.cc
index 6d0e165..eb0a2ad 100644
--- a/plugins/pyloader/testsuite/test-python_loader.cc
+++ b/plugins/pyloader/testsuite/test-python_loader.cc
@@ -104,7 +104,7 @@ main(int argc, char** argv) {
 
     try 
     {
-	SchedulableList sl;
+	SchedulableQueue sl;
 	polman.test_init("python_loader_sort_queue");
 	polman.get_policy().sort_queue(Scheduler::event_schedulable_arrival);
     }
diff --git a/src/backend/history.cc b/src/backend/history.cc
index 8a3d13e..2ca8d79 100644
--- a/src/backend/history.cc
+++ b/src/backend/history.cc
@@ -47,7 +47,7 @@ History::get_instance()
 /**
   Returns a pointer to a copy of the SchedulableStatus object relative to this instant.
   It can be NULL if time is out of range or if there are no running entities in the associated
-  SchedulableList
+  SchedulableQueue
 */
 smart_ptr<SchedulableStatus>
 History::get_scheduled_at(int time) const
@@ -56,7 +56,7 @@ History::get_scheduled_at(int time) const
     return smart_ptr<SchedulableStatus>(NULL);
 
   //look for a runing entity
-  smart_ptr<SchedulableList> p = get_simulation_status_at(time);
+  smart_ptr<SchedulableQueue> p = get_simulation_status_at(time);
   
   for (uint i = 0; i < p->size(); i++)
 	  if (p->get_item_at(i)->get_state() == SchedulableStatus::state_running)
@@ -69,21 +69,21 @@ History::get_scheduled_at(int time) const
    Returns a pointer to a copy of the SimulationStatus object relative to this instant or NULL 
    if time is out of range.	  
 */
-smart_ptr<SchedulableList>
+smart_ptr<SchedulableQueue>
 History::get_simulation_status_at(int time) const 
 {
 	if (time > _total_time_elapsed || time < 0)							//out of range
-		return smart_ptr<SchedulableList>(NULL);
+		return smart_ptr<SchedulableQueue>(NULL);
 	
   	int trascorso = -1;
 	for(vector<Slice>::const_iterator i=_slices.begin(); i < _slices.end(); i++)
 		if (time <= trascorso + i->get_duration())							//FOUND!!
-			return smart_ptr<SchedulableList>(new SchedulableList(*i->get_simulation_status()));
+			return smart_ptr<SchedulableQueue>(new SchedulableQueue(*i->get_simulation_status()));
 		else																	//Go on...
 			trascorso += i->get_duration();
 	
   //never reached if all slices are CONTIGUOUS (ans THIS shoul be!!)!!!
-	return smart_ptr<SchedulableList>(NULL);
+	return smart_ptr<SchedulableQueue>(NULL);
 }
 
 int
@@ -97,7 +97,7 @@ History::get_current_time() const
    Calls the method notify() in quality of ObservedSubject, updating all observers.
 */
 void
-History::enqueue_slice(const SchedulableList& status)
+History::enqueue_slice(const SchedulableQueue& status)
 {
   if(_slices.size() == 0)
   {
diff --git a/src/backend/history.hh b/src/backend/history.hh
index 4eeb512..75ad052 100644
--- a/src/backend/history.hh
+++ b/src/backend/history.hh
@@ -62,7 +62,7 @@ namespace sgpem
 	 \param time The inquired time instant.
 	 \return The list of Schedulable status objects at the specified time.
 	 */	
-	virtual memory::smart_ptr<sgpem::SchedulableList>	get_simulation_status_at(int time) const;
+	virtual memory::smart_ptr<sgpem::SchedulableQueue>	get_simulation_status_at(int time) const;
 
 	/**
 	 Gets the current time.
@@ -74,7 +74,7 @@ namespace sgpem
 	 Sets the status of simulation at the current time.
 	 \param status The list of \ref Schedulable status objects at the current time.
 	 */	
-	virtual void	enqueue_slice(const sgpem::SchedulableList& status);
+	virtual void	enqueue_slice(const sgpem::SchedulableQueue& status);
 
 	/**
 	 Remove all data in History following the specified time.
diff --git a/src/backend/schedulable_list.cc b/src/backend/schedulable_list.cc
index 2489fe4..4c24d4a 100644
--- a/src/backend/schedulable_list.cc
+++ b/src/backend/schedulable_list.cc
@@ -24,12 +24,12 @@ using namespace sgpem;
 using namespace std;
 using namespace memory;
 
-SchedulableList::SchedulableList()
+SchedulableQueue::SchedulableQueue()
 {
 }
 
 SchedulableStatus*
-SchedulableList::top()
+SchedulableQueue::top()
 {
 	if (_list.size() == 0)
 		return NULL;
@@ -37,7 +37,7 @@ SchedulableList::top()
 }
 
 SchedulableStatus*
-SchedulableList::bottom()
+SchedulableQueue::bottom()
 {
 	if (_list.size() == 0)
 		return NULL;
@@ -51,7 +51,7 @@ SchedulableList::bottom()
 	DON'T call delete on the returned pointer! Its destruction is managed by the queue.
  */
 SchedulableStatus*
-SchedulableList::get_item_at(const uint& where)
+SchedulableQueue::get_item_at(const uint& where)
 {
 	if (_list.size() == 0 || where >= _list.size())
 		return NULL;
@@ -63,7 +63,7 @@ SchedulableList::get_item_at(const uint& where)
 }
 
 const SchedulableStatus*
-SchedulableList::get_item_at(const uint& where) const
+SchedulableQueue::get_item_at(const uint& where) const
 {
 	if (_list.size() == 0 || where >= _list.size())
 		return NULL;
@@ -79,25 +79,25 @@ SchedulableList::get_item_at(const uint& where) const
 */
 
 uint
-SchedulableList::size() const
+SchedulableQueue::size() const
 {
 	return _list.size();
 }
 
 void
-SchedulableList::add_at_top(const SchedulableStatus& ss)
+SchedulableQueue::add_at_top(const SchedulableStatus& ss)
 {
 	_list.push_front(ss);
 }
 
 void
-SchedulableList::add_at_bottom(const SchedulableStatus& ss)
+SchedulableQueue::add_at_bottom(const SchedulableStatus& ss)
 {
 	_list.push_back(ss);
 }
 
 smart_ptr<SchedulableStatus>
-SchedulableList::remove(const uint& position)
+SchedulableQueue::remove(const uint& position)
 {
 	if (_list.size() == 0 || position >= _list.size())
 		return smart_ptr<SchedulableStatus>(NULL);
@@ -114,7 +114,7 @@ SchedulableList::remove(const uint& position)
 
 */
 bool
-SchedulableList::insert_at(const uint& which, const uint& where)
+SchedulableQueue::insert_at(const uint& which, const uint& where)
 {
 	//out of range
 	if (which >= _list.size() || where >= _list.size())
@@ -144,7 +144,7 @@ SchedulableList::insert_at(const uint& which, const uint& where)
 */
 
 void
-SchedulableList::clear()
+SchedulableQueue::clear()
 {
 	_list.clear();
 }
@@ -154,7 +154,7 @@ SchedulableList::clear()
     \brief Returns TRUE if the two objects have the same SchedulableStatus objects in the same order.
 */
 bool
-SchedulableList::operator==(const SchedulableList& dx) const
+SchedulableQueue::operator==(const SchedulableQueue& dx) const
 {
 	return _list == dx._list;
 }
@@ -164,7 +164,7 @@ SchedulableList::operator==(const SchedulableList& dx) const
     \brief Returns TRUE if the two objects have the same SchedulableStatus objects with NO ORDER IMPORTANCE.
  */
 bool
-SchedulableList::has_same_objects(const SchedulableList& dx) const
+SchedulableQueue::has_same_objects(const SchedulableQueue& dx) const
 {
 	if (_list.size() != dx._list.size())
 		return false;
@@ -179,7 +179,7 @@ SchedulableList::has_same_objects(const SchedulableList& dx) const
 
 
 void
-SchedulableList::swap(unsigned int positionA, unsigned int positionB) throw()
+SchedulableQueue::swap(unsigned int positionA, unsigned int positionB) throw()
 {
 	if (positionA == positionB || positionA >= _list.size() || positionB >= _list.size())
 		return;
diff --git a/src/backend/schedulable_list.hh b/src/backend/schedulable_list.hh
index d3dfef5..f42226b 100644
--- a/src/backend/schedulable_list.hh
+++ b/src/backend/schedulable_list.hh
@@ -31,14 +31,14 @@
 
 namespace sgpem
 {
-  class SchedulableList;
+  class SchedulableQueue;
 
-  class SG_DLLEXPORT SchedulableList
+  class SG_DLLEXPORT SchedulableQueue
   {
   public:
-    SchedulableList();
-    bool operator==(const SchedulableList&) const;
-    bool has_same_objects(const SchedulableList& dx) const;
+    SchedulableQueue();
+    bool operator==(const SchedulableQueue&) const;
+    bool has_same_objects(const SchedulableQueue& dx) const;
 
     /** \brief Returns a pointer to the first element
      *
diff --git a/src/backend/scheduler.cc b/src/backend/scheduler.cc
index 6471ff4..8086be0 100644
--- a/src/backend/scheduler.cc
+++ b/src/backend/scheduler.cc
@@ -46,7 +46,7 @@ Scheduler::get_instance()
   return *_instance;
 }
 
-SchedulableList*			
+SchedulableQueue*			
 Scheduler::get_ready_queue()
 {
   return &_ready_queue;	
@@ -90,7 +90,7 @@ Scheduler::step_forward() throw(UserInterruptException)
       //******************
       //check for arrivals and prepare the queue
       //******************
-      smart_ptr<SchedulableList> initial = h.get_simulation_status_at(h.get_current_time());
+      smart_ptr<SchedulableQueue> initial = h.get_simulation_status_at(h.get_current_time());
       if (!initial)
 	{
 	  cout << _("\nNo initial state inserted!!\n");
diff --git a/src/backend/scheduler.hh b/src/backend/scheduler.hh
index 58a99b4..85668ed 100644
--- a/src/backend/scheduler.hh
+++ b/src/backend/scheduler.hh
@@ -87,13 +87,13 @@ namespace sgpem
 		\return a pointer to the queue containing all the ready 
 		schedulable objects (for the policy to sort it). 
 		*/
-		SchedulableList*			get_ready_queue();
+		SchedulableQueue*			get_ready_queue();
 		/**
 		Resets the simulation to the initial state.
 		*/
 		void 						reset_status();
 		/**
-		Generates a new SchedulableList representing the status of the processes
+		Generates a new SchedulableQueue representing the status of the processes
 		at the simulation instant next to the current one, and extends the History by
 		one instant with it.
 		*/
@@ -115,7 +115,7 @@ namespace sgpem
 	private:
 		Scheduler();					//private constructor.
 		static Scheduler*       _instance;
-		SchedulableList		_ready_queue;
+		SchedulableQueue		_ready_queue;
 		PolicyManager& 		_policy_manager;
 	};
 
diff --git a/src/backend/slice.cc b/src/backend/slice.cc
index 4b95928..9e3a37b 100644
--- a/src/backend/slice.cc
+++ b/src/backend/slice.cc
@@ -23,12 +23,12 @@ using namespace sgpem;
 using namespace std;
 
 
-Slice::Slice(const int& start, const int& duration, const SchedulableList& status)
+Slice::Slice(const int& start, const int& duration, const SchedulableQueue& status)
   : _ref(status), _started_at(start), _duration(duration)
 {
 }
 
-const SchedulableList*
+const SchedulableQueue*
 Slice::get_simulation_status() const
 {
   return &_ref;
diff --git a/src/backend/slice.hh b/src/backend/slice.hh
index 1112aa9..8c96389 100644
--- a/src/backend/slice.hh
+++ b/src/backend/slice.hh
@@ -45,13 +45,13 @@ namespace sgpem
 	 \param duration Time length of Slice.
 	 \param status Photoshot of all \ref Schedulable during this Slice.
 	 */
-	Slice(const int& start, const int& duration, const SchedulableList& status);
+	Slice(const int& start, const int& duration, const SchedulableQueue& status);
 
 	/**
-	 Gets a constant reference to the \ref SchedulableList object for this Slice.
-	 \return The reference (constant) to the SchedulableList object for this Slice.
+	 Gets a constant reference to the \ref SchedulableQueue object for this Slice.
+	 \return The reference (constant) to the SchedulableQueue object for this Slice.
 	 */	
-	const SchedulableList* get_simulation_status() const;
+	const SchedulableQueue* get_simulation_status() const;
 
 
 	/**
@@ -73,7 +73,7 @@ namespace sgpem
 	void set_duration(const int& duration);
 		
   private:
-	SchedulableList _ref;
+	SchedulableQueue _ref;
 	int _started_at;
 	int _duration;
   };
diff --git a/src/main.cc b/src/main.cc
index bbaa7df..0412390 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -119,7 +119,7 @@ main(int argc, char* argv[])
   SchedulableStatus ss5(p5);	
   SchedulableStatus ss6(p6);
   
-  SchedulableList initial;
+  SchedulableQueue initial;
   initial.add_at_bottom(ss1);
   initial.add_at_bottom(ss2);
   initial.add_at_bottom(ss3);
@@ -151,17 +151,17 @@ main(int argc, char* argv[])
   
   // ************** TEST HISTORY
   
-  SchedulableList l1;
+  SchedulableQueue l1;
   l1.add_at_top(ss1);	l1.add_at_top(ss2);		l1.add_at_top(ss3);
   
-  SchedulableList l2;
+  SchedulableQueue l2;
   l2.add_at_top(ss4);	l2.add_at_top(ss5);		l2.add_at_top(ss6);
 
   History h(History::get_instance());
   h.enqueue_slice(l1);	//stato iniziale
   h.enqueue_slice(l2);
   
-  smart_ptr<const sgpem::SchedulableList> quale;
+  smart_ptr<const sgpem::SchedulableQueue> quale;
   
   quale = h.get_simulation_status_at(0);	//stato iniziale
  	
@@ -198,7 +198,7 @@ main(int argc, char* argv[])
   //************** TEST QUEUE
  /* cout << "\n\nTEST QUEUE\n";
   
-  SchedulableList sq;
+  SchedulableQueue sq;
   sq.add_at_bottom(ss1);
   sq.add_at_bottom(ss2);
   sq.add_at_bottom(ss3);
diff --git a/src/simulation.cc b/src/simulation.cc
index e0586f8..c50c492 100644
--- a/src/simulation.cc
+++ b/src/simulation.cc
@@ -98,7 +98,7 @@ Simulation::run() throw(UserInterruptException)
 	  do {
 		// chech for termination
 		bool all_term = true;
-		smart_ptr<SchedulableList> left = h.get_simulation_status_at(h.get_current_time());
+		smart_ptr<SchedulableQueue> left = h.get_simulation_status_at(h.get_current_time());
 		for(uint i = 0; i < left->size(); i++)
 			if (left->get_item_at(i)->get_state() != SchedulableStatus::state_terminated)
 			{
@@ -141,7 +141,7 @@ Simulation::run() throw(UserInterruptException)
 	{
 		// chech for termination
 		bool all_term = true;
-		smart_ptr<SchedulableList> left = h.get_simulation_status_at(h.get_current_time());
+		smart_ptr<SchedulableQueue> left = h.get_simulation_status_at(h.get_current_time());
 		for(uint i = 0; i < left->size(); i++)
 			if (left->get_item_at(i)->get_state() != SchedulableStatus::state_terminated)
 		{
diff --git a/src/testsuite/test-history.cc b/src/testsuite/test-history.cc
index 14713b6..9c419da 100644
--- a/src/testsuite/test-history.cc
+++ b/src/testsuite/test-history.cc
@@ -45,7 +45,7 @@ using namespace std;
 class HistoryTester
 {
 public:
-    HistoryTester(SchedulableList sl) 
+    HistoryTester(SchedulableQueue sl) 
 	: _history_length(-1), _internal_schedulable_list(sl)
 	{}
 
@@ -82,9 +82,9 @@ public:
     private:
 
     int _history_length; // mirrors the correct length of the history
-    SchedulableList* _get_simulation_status_at[400]; // mirrors the correct content of the history
+    SchedulableQueue* _get_simulation_status_at[400]; // mirrors the correct content of the history
     SchedulableStatus* _get_scheduled_at[400]; // mirrors the correct content of the history
-    SchedulableList _internal_schedulable_list;
+    SchedulableQueue _internal_schedulable_list;
 
 
     // looks for anomalies
@@ -113,13 +113,13 @@ public:
     }
 
 
-    // saves the given SchedulableList into the history, and saves a copy of it into an array
-    void _insert(sgpem::SchedulableList& status)
+    // saves the given SchedulableQueue into the history, and saves a copy of it into an array
+    void _insert(sgpem::SchedulableQueue& status)
     {
         History::get_instance().enqueue_slice(status);
 
         _history_length = _history_length + 1;
-        _get_simulation_status_at[_history_length] = new SchedulableList(status);
+        _get_simulation_status_at[_history_length] = new SchedulableQueue(status);
 
         if (History::get_instance().get_scheduled_at(_history_length) != memory::smart_ptr<SchedulableStatus>(NULL))
             _get_scheduled_at[_history_length] = new SchedulableStatus(*(status.top()));
@@ -129,8 +129,8 @@ public:
     }
 
 
-    // modifies the given SchedulableList object in an arbitrary way.
-    void _randomize(sgpem::SchedulableList& status)
+    // modifies the given SchedulableQueue object in an arbitrary way.
+    void _randomize(sgpem::SchedulableQueue& status)
     {
         status.swap(9, 10);
         status.swap(1, 16);
@@ -232,7 +232,7 @@ main(int argc, char** argv)
     SchedulableStatus ss18(p18);
     SchedulableStatus ss19(p19); // not used!
 
-    SchedulableList initial;
+    SchedulableQueue initial;
     initial.add_at_bottom(ss1);
     initial.add_at_bottom(ss2);
     initial.add_at_bottom(ss3);
diff --git a/src/testsuite/test-parse_command.cc b/src/testsuite/test-parse_command.cc
index 4b8530d..96896a1 100644
--- a/src/testsuite/test-parse_command.cc
+++ b/src/testsuite/test-parse_command.cc
@@ -56,7 +56,7 @@ namespace sgpem
 	    std::cout << "get_scheduled_at" << time;
 	    return History::get_scheduled_at(time);
 	}
-	memory::smart_ptr<sgpem::SchedulableList>	get_simulation_status_at(int time) const
+	memory::smart_ptr<sgpem::SchedulableQueue>	get_simulation_status_at(int time) const
 	{
 	    std::cout << "get_simulation_status_at" << time;
 	    return History::get_simulation_status_at(time);
@@ -66,7 +66,7 @@ namespace sgpem
 	    std::cout << "getCurrentTime";
 	    return History::get_current_time();
 	}
-	void	enqueue_slice(const sgpem::SchedulableList& status)
+	void	enqueue_slice(const sgpem::SchedulableQueue& status)
 	{
 	    std::cout << "enqueue_slice";
 	    History::enqueue_slice(status);
diff --git a/src/testsuite/test-stepforward.cc b/src/testsuite/test-stepforward.cc
index c2aa52b..f87ebe2 100644
--- a/src/testsuite/test-stepforward.cc
+++ b/src/testsuite/test-stepforward.cc
@@ -82,7 +82,7 @@ namespace sgpem
 
         virtual void sort_queue(Scheduler::event event) const throw(UserInterruptException)
         { // here a lot of fun, exactly O(n^2) fun!
-            SchedulableList sl = History.get_instance().get_simulation_status_at(get_current_time());
+            SchedulableQueue sl = History.get_instance().get_simulation_status_at(get_current_time());
             for (int i = 0; i < sl.size(); i++)
                 {
                 for (int j = 0; j < sl.size()-1; j++)
@@ -186,9 +186,9 @@ namespace sgpem
      public:
 
 	memory::smart_ptr<sgpem::SchedulableStatus> get_scheduled_at(int time) const {}
-	memory::smart_ptr<sgpem::SchedulableList> get_simulation_status_at(int time) const;
+	memory::smart_ptr<sgpem::SchedulableQueue> get_simulation_status_at(int time) const;
 	int	get_current_time() const {return _total_time_elapsed;}
-	void	enqueue_slice(const sgpem::SchedulableList& status);
+	void	enqueue_slice(const sgpem::SchedulableQueue& status);
 	void	truncate_at(int instant) {}
 	static History&	get_instance();	
      private:
@@ -272,7 +272,7 @@ main(int argc, char** argv) {
     SchedulableStatus ss18(p18);
     SchedulableStatus ss19(p19); // not used!
 
-    SchedulableList initial;
+    SchedulableQueue initial;
     initial.add_at_bottom(ss1);
     initial.add_at_bottom(ss2);
     initial.add_at_bottom(ss3);
diff --git a/src/text_simulation.cc b/src/text_simulation.cc
index 64d4b7f..6672e1d 100644
--- a/src/text_simulation.cc
+++ b/src/text_simulation.cc
@@ -378,7 +378,7 @@ TextSimulation::update()
 	ustring temp;
 	
 	when = h.get_current_time();
-	smart_ptr<SchedulableList> ll = h.get_simulation_status_at(when);
+	smart_ptr<SchedulableQueue> ll = h.get_simulation_status_at(when);
 	
 	for (uint dev=0; dev < _devices.size(); dev++)
 	{