Index: HDDefs.h
===================================================================
diff -u -r277ee7406bc1457e096b2bfe7de2541f8d4a7ccc -rbb8318dec093411e13758f37c26e0d815010d8eb
--- HDDefs.h	(.../HDDefs.h)	(revision 277ee7406bc1457e096b2bfe7de2541f8d4a7ccc)
+++ HDDefs.h	(.../HDDefs.h)	(revision bb8318dec093411e13758f37c26e0d815010d8eb)
@@ -7,8 +7,8 @@
 *
 * @file    HDDefs.h
 *
-* @author  (last)      Michael Garthwaite
-* @date    (last)      07-Sep-2022
+* @author  (last)      Dara Navaei
+* @date    (last)      18-Oct-2022
 *
 * @author  (original)  Sean Nash
 * @date    (original)  29-May-2020
@@ -731,14 +731,61 @@
     HD_EVENT_STARTUP = 0,                                               ///< HD startup event
     HD_EVENT_OP_MODE_CHANGE,                                            ///< HD Op mode change event
     HD_EVENT_SUB_MODE_CHANGE,                                           ///< HD Op sub-mode change event
-    HD_EVENT_DRY_SELF_TEST_CARTRIDGE_RESULT,
-    HD_EVENT_DRY_SELF_TEST_PRESSURE_RESULT,
-    HD_EVENT_WET_SELF_TEST_DISPLACEMENT_RESULT,
-    HD_EVENT_CPU_RAM_ERROR_STATUS,
+    HD_EVENT_DRY_SELF_TEST_CARTRIDGE_RESULT,                            ///< HD dry self test cartridge result
+    HD_EVENT_DRY_SELF_TEST_PRESSURE_RESULT,                             ///< HD dry self test pressure result
+    HD_EVENT_WET_SELF_TEST_DISPLACEMENT_RESULT,                         ///< HD wet self test displacement result
+    HD_EVENT_CPU_RAM_ERROR_STATUS,                                      ///< HD CPU RAM error status
+    HD_EVENT_CAL_RECORD_UPDATE,                                         ///< HD new calibration record updated
+    HD_EVENT_SYSTEM_RECORD_UPDATE,                                      ///< HD new system record has been updated
+    HD_EVENT_SERVICE_UPDATE,                                            ///< HD new service record has been updated
+    HD_EVENT_USAGE_INFO_UPDATE,                                         ///< HD new usage information has been updated
+    HD_EVENT_SW_CONFIG_UPDATE,                                          ///< HD new software configuration has been updated
     NUM_OF_EVENT_IDS                                                    ///< Total number of HD events
 };
 typedef enum HD_Event_List HD_EVENT_ID_T;                               ///< Type for HD event list enumeration
 
+/// Enumeration of generic confirmation request type from HD to UI.
+enum Generic_Confirm_Command
+{
+    GENERIC_CONFIRM_CMD_REQUEST_OPEN    = 0,                            ///< Generic Confirm command to display the confirmation
+    GENERIC_CONFIRM_CMD_TIMEOUT_CLOSE   = 1,                            ///< Generic Confirm command to hide    the confirmation, due to timeout user confirmation
+    GENERIC_CONFIRM_CMD_REJECT          = 2,                            ///< Generic Confirm command to display the confirmation rejection in case the request in not valid/accepted anymore.
+    GENERIC_CONFIRM_CMD_ACCEPT_CLOSE    = 3,                            ///< Generic Confirm command to hide    the confirmation, due to accept  user confirmation.
+    NUM_OF_GENERIC_CONFIRM_COMMAND                                      ///< Total number of generic confirm commands
+};
+typedef enum Generic_Confirm_Command GENERIC_CONFIRM_COMMAND_T;         ///< Type for generic confirm enumeration
+
 /**@}*/
 
+/**
+ *  @addtogroup UIUserConfirm
+ *  @{
+ */
+
+/// Enumeration of generic confirmation id between HD and UI.
+enum Generic_Confirm_Id
+{
+    GENERIC_CONFIRM_ID_NONE = 0,                                        ///< Generic Confirm None
+    GENERIC_CONFIRM_ID_DISINFECT_STOP_WATERFLUSH,                       ///< water flush        stop user confirmation
+    GENERIC_CONFIRM_ID_DISINFECT_STOP_HEAT,                             ///< Heat disinfect     stop user confirmation
+    GENERIC_CONFIRM_ID_DISINFECT_STOP_CHEMICAL,                         ///< Chemical disinfect stop user confirmation
+    NUM_OF_GENERIC_CONFIRM_IDS,                                         ///< Total number of generic confirm IDs
+};
+typedef enum Generic_Confirm_Id GENERIC_CONFIRM_ID_T;                   ///< Type for generic confirm enumeration
+
+/**@}*/
+
+/// List of confirmation request status
+typedef enum Confirmation_Status
+{
+    CONFIRMATION_REQUEST_STATUS_REJECTED = 0,          ///< Confirmation status rejected
+    CONFIRMATION_REQUEST_STATUS_ACCEPTED,              ///< Confirmation status accepted
+    CONFIRMATION_REQUEST_STATUS_TIMEOUT,               ///< Confirmation status timeout
+    CONFIRMATION_REQUEST_STATUS_PENDING,               ///< Confirmation status pending response
+    CONFIRMATION_REQUEST_STATUS_UNUSED,                ///< Confirmation status Unused
+    NUM_OF_CONFIRMATION_REQUEST_STATUS                 ///< Number of confirmation status
+} CONFIRMATION_REQUEST_STATUS_T;
+
+/**@}*/
+
 #endif