diff --git a/src/core/pyros_django/agent/Agent.py b/src/core/pyros_django/agent/Agent.py
index d470500..73b1d7c 100755
--- a/src/core/pyros_django/agent/Agent.py
+++ b/src/core/pyros_django/agent/Agent.py
@@ -115,7 +115,7 @@ import config
 #from config import PYROS_ENV, ROOT_DIR, DOC_DIR
 #from config import *
 
-from common.models import AgentSurvey, Command, AgentLogs
+from common.models import AgentSurvey, AgentCmd, AgentLogs
 from config.configpyros import ConfigPyros
 #from dashboard.views import get_sunelev
 #from devices.TelescopeRemoteControlDefault import TelescopeRemoteControlDefault
@@ -389,7 +389,7 @@ class Agent:
     _computer_description = ''
 
     # Current and next command to send
-    _cmdts:Command = None
+    _cmdts:AgentCmd = None
     _next_cmdts = None
 
     _agent_survey = None
@@ -606,7 +606,7 @@ class Agent:
 
             # Avoid blocking on false "running" commands
             # (old commands that stayed with "running" status when agent was killed)
-            Command.delete_commands_with_running_status_for_agent(self.name)
+            AgentCmd.delete_commands_with_running_status_for_agent(self.name)
 
             self._iter_num = 1
             self._DO_MAIN_LOOP = True
@@ -715,7 +715,7 @@ class Agent:
         N=5
         if ((self._iter_num-1) % N) == 0:
             self.print("Purging old commands if exists")
-            #Command.purge_old_commands_for_agent(self.name)
+            #AgentCmd.purge_old_commands_for_agent(self.name)
             self._purge_old_commands_sent_to_me()
 
         # Get next command and process it (if exists)
@@ -778,14 +778,14 @@ class Agent:
         if self.TEST_MODE:
             self.printd("[IN TEST MODE]")
             self.print("Flush previous commands to be sure to start in clean state")
-            Command.delete_pending_commands_for_agent(self.name)
+            AgentCmd.delete_pending_commands_for_agent(self.name)
         else:
             self.printd("[IN NORMAL MODE]")
             self.TEST_MAX_DURATION_SEC=None 
 
 
     def _purge_old_commands_sent_to_me(self):
-        Command.purge_old_commands_sent_to_agent(self.name)
+        AgentCmd.purge_old_commands_sent_to_agent(self.name)
 
 
     def _routine_process(self):
@@ -822,14 +822,14 @@ class Agent:
         ###
         COMMAND_PEREMPTION_DATE_FROM_NOW = datetime.utcnow() - timedelta(hours = self.COMMANDS_PEREMPTION_HOURS)
         #self.printd("peremption date", COMMAND_PEREMPTION_DATE_FROM_NOW)
-        old_commands = Command.objects.filter(
+        old_commands = AgentCmd.objects.filter(
             # only commands for me
             recipient = self.name,
             # only pending commands
             sender_deposit_time__lt = COMMAND_PEREMPTION_DATE_FROM_NOW,
         )
         ###
-        old_commands = Command.get_old_commands_for_agent(self.name)
+        old_commands = AgentCmd.get_old_commands_for_agent(self.name)
         if old_commands.exists():
             self.printd("Found old commands to delete:")
             for cmd in old_commands: self.printd(cmd)
@@ -1037,7 +1037,7 @@ class Agent:
     """
     def send_command(self, cmd_name):
         recipient_agent = self.name if self.TEST_COMMANDS_DEST=="myself" else self.TEST_COMMANDS_DEST
-        Command.objects.create(sender=self.name, recipient=recipient_agent, name=cmd_name)
+        AgentCmd.objects.create(sender=self.name, recipient=recipient_agent, name=cmd_name)
     """
     #def send_command(self, to_agent, cmd_type, cmd_name, cmd_args=None):
     def send_cmd_to(self, to_agent, cmd_name, cmd_args=None):
@@ -1045,19 +1045,19 @@ class Agent:
         #ex: send_command(“AgentX”,”GENERIC”,”EVAL”,“3+4”)
         ex: send_command(“AgentX”,"EVAL”,“3+4”)
         """
-        #return Command.send_cmd(self.name, self._get_real_agent_name_for_alias(to_agent), cmd_name, cmd_args)
+        #return AgentCmd.send_cmd(self.name, self._get_real_agent_name_for_alias(to_agent), cmd_name, cmd_args)
         cmd = self.create_cmd_for(to_agent, cmd_name, cmd_args)
         cmd.send()
         return cmd
 
-    def create_cmd_for(self, to_agent, cmd_name, cmd_args=None)->Command:
+    def create_cmd_for(self, to_agent, cmd_name, cmd_args=None)->AgentCmd:
         '''
         real_agent_name = self._get_real_agent_name(to_agent)
         real_cmd_name = cmd_name
         if '.' in real_agent_name:
             real_agent_name, component_name = real_agent_name.split('.')
             real_cmd_name = component_name+'.'+cmd_name
-        return Command.create(self.name, real_agent_name, real_cmd_name, cmd_args)
+        return AgentCmd.create(self.name, real_agent_name, real_cmd_name, cmd_args)
         try:
             real_agent_name = self._get_real_agent_name(to_agent)
         except KeyError as e:
@@ -1068,16 +1068,16 @@ class Agent:
             #self.log_e("Exception raised", e)
             self.log_e(f"=> Thus, I do not send this command '{cmd_name}'")
             return None
-        return Command.create(self.name, real_agent_name, cmd_name, cmd_args)
+        return AgentCmd.create(self.name, real_agent_name, cmd_name, cmd_args)
         '''
-        return Command(
+        return AgentCmd(
             sender=self.name,
             recipient=self._get_real_agent_name_for_alias(recipient_agent_alias_name),
             name=cmd_name
         )
         '''
 
-    def _get_next_valid_and_not_running_command(self)->Command:
+    def _get_next_valid_and_not_running_command(self)->AgentCmd:
         """
         Return next VALID (not expired) command (read from the DB command table)
         which is relevant to this agent.
@@ -1091,13 +1091,13 @@ class Agent:
         # but there might be a risk
         # that a command status is modified while we are reading...
         with transaction.atomic():
-            self._pending_commands = Command.get_pending_and_running_commands_for_agent(self.name)
+            self._pending_commands = AgentCmd.get_pending_and_running_commands_for_agent(self.name)
         commands = self._pending_commands
         if not commands.exists():
             self.print("<None>")
             return None
         self.printd("Current pending (or running) commands are (time ordered):")
-        Command.show_commands(commands)
+        AgentCmd.show_commands(commands)
 
         # 2) If there is a "do_exit" or "do_abort" command pending (even at the end of the list),
         # which is VALID (not expired),
@@ -1165,7 +1165,7 @@ class Agent:
 
 
     #def _exec_agent_general_cmd(self, cmd:Command):
-    def _exec_agent_cmd(self, cmd:Command):
+    def _exec_agent_cmd(self, cmd:AgentCmd):
 
         #self.print(f"Starting execution of an AGENT LEVEL cmd {cmd}...")
         self.print(f"Starting execution of an AGENT LEVEL cmd...")
@@ -1210,7 +1210,7 @@ class Agent:
             time.sleep(1)
         elif cmd_name in ("do_flush_commands"):
             self.printd("flush_commands received: Delete all pending commands")
-            Command.delete_pending_commands_for_agent(self.name)
+            AgentCmd.delete_pending_commands_for_agent(self.name)
             cmd.set_result('DONE')
         elif cmd_name in ("do_abort", "do_exit", "do_restart_init"):
             #self.printd("Current pending commands are:")
@@ -1243,8 +1243,8 @@ class Agent:
         # This "do_exit" should normally kill any current thread (to be checked...)
         if cmd.name == "do_exit":
             self.print("Before exiting, Here are (if exists) the current (still) pending commands (time ordered) :")
-            commands = Command.get_pending_and_running_commands_for_agent(self.name)
-            Command.show_commands(commands, True)
+            commands = AgentCmd.get_pending_and_running_commands_for_agent(self.name)
+            AgentCmd.show_commands(commands, True)
             #if self.TEST_MODE and self.TEST_WITH_FINAL_TEST and self.TEST_COMMANDS_DEST == "myself": self.simulator_test_results()
             if self.TEST_MODE and self.TEST_WITH_FINAL_TEST: 
                 self._TEST_test_results()
@@ -1264,14 +1264,14 @@ class Agent:
         self.printd("Logging data...")
     '''
 
-    def exec_cmd_from_its_name(self, cmd:Command):
+    def exec_cmd_from_its_name(self, cmd:AgentCmd):
         func = cmd.name
         if cmd.args:
             return getattr(self, func)(*cmd.args)
         else:
             return getattr(self, func)()
 
-    def is_agent_level_cmd(self, cmd:Command):
+    def is_agent_level_cmd(self, cmd:AgentCmd):
         return cmd.is_agent_general_cmd() or self._is_agent_specific_cmd(cmd)
 
     '''
@@ -1292,7 +1292,7 @@ class Agent:
             self._exec_agent_specific_cmd(cmd)
     '''
 
-    def _is_agent_specific_cmd(self, cmd:Command):
+    def _is_agent_specific_cmd(self, cmd:AgentCmd):
         return cmd.name in self.AGENT_SPECIFIC_COMMANDS
 
     '''
@@ -1318,12 +1318,12 @@ class Agent:
 
     # to be overriden by subclass (AgentDevice)
     # @abstract
-    def exec_device_cmd_if_possible(self, cmd:Command):
+    def exec_device_cmd_if_possible(self, cmd:AgentCmd):
         pass
 
     # TO BE OVERRIDEN by subclass (AgentDevice)
     # @abstract
-    def exec_device_cmd(self, cmd:Command):
+    def exec_device_cmd(self, cmd:AgentCmd):
         #self.exec_cmd_from_its_name(cmd)
         pass
 
@@ -1344,7 +1344,7 @@ class Agent:
     def _set_test_mode(self, mode:bool):
         self.TEST_MODE=mode
 
-    def _TEST_get_next_command_to_send(self)->Command:
+    def _TEST_get_next_command_to_send(self)->AgentCmd:
         cmd_full_name = next(self.TEST_COMMANDS, None)
         #return cmd_name
         if cmd_full_name is None: return None
@@ -1519,8 +1519,8 @@ class Agent:
         #commands = Command.get_last_N_commands_sent_to_agent(self.name, 16)
         nb_commands = len(self.TEST_COMMANDS_LIST)
         if "ad_unknown get_dec" in self.TEST_COMMANDS_LIST: nb_commands -= 1
-        commands = Command.get_last_N_commands_sent_by_agent(self.name, nb_commands)
-        Command.show_commands(commands)
+        commands = AgentCmd.get_last_N_commands_sent_by_agent(self.name, nb_commands)
+        AgentCmd.show_commands(commands)
         return nb_commands, commands
         """ OLD SCENARIO
         nb_asserted = 0
diff --git a/src/core/pyros_django/agent/AgentDevice.py b/src/core/pyros_django/agent/AgentDevice.py
index a1583b4..acb7e46 100755
--- a/src/core/pyros_django/agent/AgentDevice.py
+++ b/src/core/pyros_django/agent/AgentDevice.py
@@ -10,13 +10,13 @@ import time
 ##from .Agent import Agent
 sys.path.append("..")
 from agent.Agent import Agent, build_agent, StoppableThreadEvenWhenSleeping
-from common.models import AgentDeviceStatus, Command, get_or_create_unique_row_from_model
+from common.models import AgentDeviceStatus, AgentCmd, get_or_create_unique_row_from_model
 
 
 sys.path.append("../../..")
 from device_controller.abstract_component.device_controller import (
     DeviceController,
-    DeviceCommand,
+    DeviceCmd,
     DeviceTimeoutException,
     UnknownGenericCmdException, UnimplementedGenericCmdException, DCCNotFoundException, UnknownNativeCmdException
 )
@@ -217,11 +217,11 @@ class AgentDevice(Agent):
     """
 
     # @override superclass (Agent) method
-    def is_device_level_cmd(self, cmd:Command):
-        return self._device_ctrl.is_valid_cmd(DeviceCommand(cmd.full_name))
+    def is_device_level_cmd(self, cmd:AgentCmd):
+        return self._device_ctrl.is_valid_cmd(DeviceCmd(cmd.full_name))
 
-    def is_device_generic_but_UNIMPLEMENTED_cmd(self, cmd:Command):
-        return self._device_ctrl.is_generic_but_UNIMPLEMENTED_cmd(DeviceCommand(cmd.full_name))
+    def is_device_generic_but_UNIMPLEMENTED_cmd(self, cmd:AgentCmd):
+        return self._device_ctrl.is_generic_but_UNIMPLEMENTED_cmd(DeviceCmd(cmd.full_name))
 
     def _is_running_device_cmd(self):
         #return (self._current_device_cmd_thread is not None) or self._current_device_cmd_thread.is_alive()
@@ -229,7 +229,7 @@ class AgentDevice(Agent):
         return self._current_device_cmd_thread and self._current_device_cmd_thread.is_alive()
 
     # @override superclass (Agent) method
-    def exec_device_cmd_if_possible(self, cmd:Command):
+    def exec_device_cmd_if_possible(self, cmd:AgentCmd):
 
         self._set_status(self.STATUS_SPECIFIC_PROCESS)
         #self.print(f"Starting execution of a DEVICE cmd {cmd}")
@@ -567,7 +567,7 @@ class AgentDevice(Agent):
 
     # This method is also called DIRECTLY from routine_process().get_device_status() (NOT FROM A THREAD)
     # @override parent class (Agent)
-    def exec_device_cmd(self, cmd:Command):
+    def exec_device_cmd(self, cmd:AgentCmd):
         #cmd = self._current_device_cmd
         self.tprintd("*** DEVICE cmd name is", cmd.name)
         self.tprintd("*** PASS IT TO DEVICE TYPE", cmd.device_type)
diff --git a/src/core/pyros_django/common/admin.py b/src/core/pyros_django/common/admin.py
index 5dfb03d..04f8aca 100644
--- a/src/core/pyros_django/common/admin.py
+++ b/src/core/pyros_django/common/admin.py
@@ -233,7 +233,7 @@ class AlbumAdmin(PyrosModelAdmin):
 # Link the models to the admin interface
 
 # (EP added 10/7/19)
-admin.site.register(Command)
+admin.site.register(AgentCmd)
 admin.site.register(AgentLogs)
 admin.site.register(AgentSurvey)
 admin.site.register(AgentDeviceStatus)
diff --git a/src/core/pyros_django/common/models.py b/src/core/pyros_django/common/models.py
index 09fee0b..d250c95 100644
--- a/src/core/pyros_django/common/models.py
+++ b/src/core/pyros_django/common/models.py
@@ -17,7 +17,7 @@ from model_utils import Choices
 # Project imports
 # DeviceCommand is used by class Command
 sys.path.append("../../..")
-from src.device_controller.abstract_component.device_controller import DeviceCommand
+from src.device_controller.abstract_component.device_controller import DeviceCmd
 
 ''' 
 NOT USED - to be removed
@@ -401,7 +401,7 @@ class Alert(Request):
 
 
 
-class Command(models.Model):
+class AgentCmd(models.Model):
 
     """
     | id | sender | recipient | name | validity_duration (default=60) | s_deposit_time | r_read_time
@@ -539,7 +539,7 @@ class Command(models.Model):
             #s_deposit_time__gte = cls.get_peremption_date_from_now(),
         )
         if running_commands:
-            Command.show_commands(running_commands)
+            AgentCmd.show_commands(running_commands)
             running_commands.delete()
         else: printd("<None>")
 
@@ -565,7 +565,7 @@ class Command(models.Model):
             s_deposit_time__lt = now_minus_2sec
         )
         if pending_commands:
-            Command.show_commands(pending_commands)
+            AgentCmd.show_commands(pending_commands)
             pending_commands.delete()
         else: printd("<None>")
 
@@ -649,7 +649,7 @@ class Command(models.Model):
             else: printd("-", cmd.name, cmd)
 
 
-    # -------------- Command INSTANCE METHODS --------------
+    # -------------- AgentCmd INSTANCE METHODS --------------
 
     def __str__(self):
         #return (f"Commmand '{self.name}' ({self.state}) sent by agent {self.sender} to agent {self.recipient} at {self.s_deposit_time}")
@@ -659,7 +659,7 @@ class Command(models.Model):
     @property
     def device_command(self):
         if not self._device_command:
-            self._device_command = DeviceCommand(self.full_name)
+            self._device_command = DeviceCmd(self.full_name)
             #dc = self._device_command
             #print("...DEVICE CMD:", dc.full_name, dc.name, dc.devtype, dc.args)
         return self._device_command
diff --git a/src/core/pyros_django/monitoring/views.py b/src/core/pyros_django/monitoring/views.py
index b5d6305..7e15470 100644
--- a/src/core/pyros_django/monitoring/views.py
+++ b/src/core/pyros_django/monitoring/views.py
@@ -1,6 +1,6 @@
 from django.http import HttpResponse
 from django.shortcuts import render
-from common.models import Command
+from common.models import AgentCmd
 
 # Create your views here.
 
@@ -41,7 +41,7 @@ def weather_config_update(request):
         # <class 'list'>: ['monitor_name_switch', 'None', 'Came:/S/N_A5EM:/Power_input', 'Rain_boolean']
         if "Error_code" in cmd_args:
             something = 5/0
-        Command.send_command('Dashboard', 'AgentM', cmd_name, cmd_args)
+        AgentCmd.send_command('Dashboard', 'AgentM', cmd_name, cmd_args)
 
         #TODO: Pour l'instant, on ne recupere pas encore ce retour
 
diff --git a/src/device_controller/abstract_component/device_controller.py b/src/device_controller/abstract_component/device_controller.py
index 18fc79e..8129750 100755
--- a/src/device_controller/abstract_component/device_controller.py
+++ b/src/device_controller/abstract_component/device_controller.py
@@ -9,6 +9,7 @@ To be used as a base class (interface) for any concrete socket client telescope 
 # Standard library imports
 #from enum import Enum
 import copy
+from dataclasses import dataclass, field
 import functools
 #import inspect
 import logging
@@ -18,6 +19,9 @@ import socket
 import sys
 import threading
 import time
+from typing import Dict
+
+
 
 # Third party imports
 
@@ -99,7 +103,7 @@ def recursive_search(f):
     return wrapped
 
 
-class DeviceCommand:
+class DeviceCmd:
 
     full_name:str = ''
     name = None
@@ -141,7 +145,7 @@ class DeviceCommand:
     def is_generic(self):
         #return type(self).is_generic_cmd_name(self.full_name)
         return self.is_generic_cmd_name(self.full_name)
-        #return DeviceCommand.is_generic_cmd_name(self.full_name)
+        #return DeviceCmd.is_generic_cmd_name(self.full_name)
         #return self.name.startswith('do_') or self.name.startswith('get_') or self.name.startswith('set_')
     '''
 
@@ -251,11 +255,8 @@ class UnexpectedCommandReturnCode(Exception):
 class DeviceTimeoutException(Exception):
     pass
 
-#from dataclasses import dataclass, field
-from typing import Dict
 
 
-'''
 @dataclass
 class Cmd:
     generic_name: str = 'generic name'
@@ -265,7 +266,6 @@ class Cmd:
     final_simul_response: str = 'simulator response'
     immediate_responses: Dict[str, str] = field(default_factory=dict)
     errors: Dict[str, str] = field(default_factory=dict)
-'''
 
 class Gen2NatCmds:
     # To be set by constructor
@@ -800,7 +800,7 @@ class DeviceController():
                 return dcc
         raise DCCNotFoundException("DEVICE CONTROLLER COMPONENT NOT FOUND: "+dc_component_type)
 
-    def is_valid_cmd(self, cmd:DeviceCommand):
+    def is_valid_cmd(self, cmd:DeviceCmd):
         self.printd("cmd.name is", cmd.name)
         self.printd(cmd)
         self.printd("generic ?", cmd.is_generic())
@@ -811,23 +811,23 @@ class DeviceController():
             self.is_valid_native_cmd(cmd)
         )
 
-    def is_generic_but_UNIMPLEMENTED_cmd(self, cmd:DeviceCommand):
+    def is_generic_but_UNIMPLEMENTED_cmd(self, cmd:DeviceCmd):
         return cmd.is_generic() and not self.is_implemented_generic_cmd(cmd)
 
     # WRAPPER methods
-    def has_generic_cmd(self, cmd:DeviceCommand):
+    def has_generic_cmd(self, cmd:DeviceCmd):
         #return self._my_cmds.get(cmd.name) is not None
         return cmd.name in self._my_cmds.get()
 
-    def has_native_cmd(self, cmd:DeviceCommand)->bool:
+    def has_native_cmd(self, cmd:DeviceCmd)->bool:
         #return self._my_cmds.get(cmd.name) is not None
         return self._my_cmds.has_native_cmd(cmd.name)
 
-    def has_native_cmd_for_generic(self, generic_cmd:DeviceCommand):
+    def has_native_cmd_for_generic(self, generic_cmd:DeviceCmd):
         return self._my_cmds.get_native_infos_for_generic_cmd(generic_cmd.name) not in [None, []]
 
     # check if generic cmd exists
-    def is_valid_generic_cmd(self, cmd:DeviceCommand):
+    def is_valid_generic_cmd(self, cmd:DeviceCmd):
         #printd("_my_cmds", self._my_cmds)
         # 1) If a DCC given, return search result in this DCC commands
         if cmd.devtype:
@@ -849,7 +849,7 @@ class DeviceController():
         '''
 
     # check if generic cmd exists and is implemented as a native cmd (in dictionary)
-    def is_implemented_generic_cmd(self, cmd:DeviceCommand):
+    def is_implemented_generic_cmd(self, cmd:DeviceCmd):
         self.printd("is implemented generic ?")
         self.printd("cmd.devtype", cmd.devtype)
         #printd("_my_cmds", self._my_cmds)
@@ -877,7 +877,7 @@ class DeviceController():
         return self.get_dc_component_for_type(cmd.devtype).has_native_cmd_for_generic(cmd)
         '''
 
-    def is_valid_native_cmd(self, cmd:DeviceCommand)->bool:
+    def is_valid_native_cmd(self, cmd:DeviceCmd)->bool:
         ##return self._my_cmds.is_valid_native_cmd(cmd.name)
         # 1) If a DCC given, return search result in this DCC commands
         if cmd.devtype:
@@ -995,14 +995,14 @@ class DeviceController():
     or
     - FROM A THREAD from AgentDevice._thread_exec_specific_cmd().exec_specific_cmd()
     '''
-    #def execute_cmd(self, cmd:DeviceCommand)->GenericResult:
+    #def execute_cmd(self, cmd:DeviceCmd)->GenericResult:
     def exec_cmd(self, raw_input_cmd:str)->GenericResult:
         '''
         :param raw_input_cmd:
         '''
 
         #generic_cmd, args = self.is_generic_cmd(raw_input_cmd)
-        cmd = DeviceCommand(raw_input_cmd)
+        cmd = DeviceCmd(raw_input_cmd)
         self.tprintd("cmd is", cmd, raw_input_cmd)
 
         # GENERIC command (pyros grammar)
@@ -1176,7 +1176,7 @@ class DeviceController():
 
 
 
-    #def exec_generic_cmd(self, generic_cmd:DeviceCommand)->str:
+    #def exec_generic_cmd(self, generic_cmd:DeviceCmd)->str:
     ##def exec_generic_cmd(self, generic_cmd:str, values_to_set:str=None, dcc_type:str=None)->str:
     def exec_generic_cmd(self, generic_cmd:str, values_to_set:str=None)->str:
         ''' Execute a generic command
diff --git a/src/device_controller/concrete_component/gemini/gemini_controller.py b/src/device_controller/concrete_component/gemini/gemini_controller.py
index 51b89e1..71e04c8 100755
--- a/src/device_controller/concrete_component/gemini/gemini_controller.py
+++ b/src/device_controller/concrete_component/gemini/gemini_controller.py
@@ -22,7 +22,7 @@ from device_controller.abstract_component.device_controller import (
     printd,
     DeviceController,
     Gen2NatCmds, 
-    #Cmd,
+    Cmd,
     UnknownNativeCmdException, UnknownGenericCmdArgException
 )
 
@@ -346,7 +346,6 @@ class DC_Gemini(DeviceController):
     #
     # VERSION 4 : Command class (Cmd)
     #
-    '''
     get_ack2 = Cmd(
         #generic_name = 
         'get_ack2', 
@@ -370,7 +369,6 @@ class DC_Gemini(DeviceController):
             '1' : 'pb 1 ...',
         }
     )
-    '''
 
 
     # Utilisation, affichage
--
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