diff --git a/Constants/XAiModelsConstants.cs b/Constants/XAiModelsConstants.cs
index 50cc25e..6caa072 100644
--- a/Constants/XAiModelsConstants.cs
+++ b/Constants/XAiModelsConstants.cs
@@ -2,6 +2,10 @@ namespace xAiModels.Constants
 {
     public struct XAiModelsConstants
     {
+        //
+        // Service Extensions Log Tag ...
+        public const string XAiModelsDILogTag = "XAiModels";
+        
         //
         // Table Mapping Identifiers ...
         public const string XAiMessageTable = "AiMessages";
diff --git a/DI/XDIHelperExtension.cs b/DI/XDIHelperExtension.cs
index 8cccb43..7bb9f6b 100644
--- a/DI/XDIHelperExtension.cs
+++ b/DI/XDIHelperExtension.cs
@@ -18,9 +18,13 @@ using xCommons.Helpers;
 using xAiModels.Interfaces.Entities;
 using xAiModels.Interfaces;
 using xAiModels.Providers;
+using xAiModels.Constants;
 
 namespace xAiModels.DI
 {
+    /// <summary>
+    /// Service Registration Extensions Classes ...
+    /// </summary>
     public static class XDIHelperExtension
     {
         /// <summary>
@@ -82,18 +86,18 @@ namespace xAiModels.DI
 
             //
             // XAiConversation ...
-            pushHelper.AddHub<XAiConversationDtoHub>("aiConversationDto");
-            pushHelper.AddHub<XAiConversationEntityHub>("aiConversationEntity");
+            pushHelper.AddHub<XAiConversationDtoHub>(XAiModelsConstants.XAiConversationDtoHub);
+            pushHelper.AddHub<XAiConversationEntityHub>(XAiModelsConstants.XAiConversationEntityHub);
 
             //
             // XAiMessage ...
-            pushHelper.AddHub<XAiMessageDtoHub>("aiMessageDto");
-            pushHelper.AddHub<XAiMessageEntityHub>("aiMessageEntity");
+            pushHelper.AddHub<XAiMessageDtoHub>(XAiModelsConstants.XAiMessageDtoHub);
+            pushHelper.AddHub<XAiMessageEntityHub>(XAiModelsConstants.XAiMessageEntityHub);
 
             //
             // XAiProject ...
-            pushHelper.AddHub<XAiProjectDtoHub>("aiProjectDto");
-            pushHelper.AddHub<XAiProjectEntityHub>("aiProjectEntity");
+            pushHelper.AddHub<XAiProjectDtoHub>(XAiModelsConstants.XAiProjectDtoHub);
+            pushHelper.AddHub<XAiProjectEntityHub>(XAiModelsConstants.XAiProjectEntityHub);
 
             //
             app.UseXPushService(pushHelper);
@@ -247,7 +251,7 @@ namespace xAiModels.DI
         /// <summary>
         /// a LogTag for Service ...
         /// </summary>
-        private static string XLogTag = "XAiModels";
+        private static string XLogTag = XAiModelsConstants.XAiModelsDILogTag;
 
         /// <summary>
         /// print a log in Console ...