diff --git a/DataCenter_Windows/WindowsDataCenter/Interfaces/TimeLog.cs b/DataCenter_Windows/WindowsDataCenter/Interfaces/TimeLog.cs
index 416fb4a..57cedae 100644
--- a/DataCenter_Windows/WindowsDataCenter/Interfaces/TimeLog.cs
+++ b/DataCenter_Windows/WindowsDataCenter/Interfaces/TimeLog.cs
@@ -11,6 +11,7 @@ namespace Interfaces
         public DateTimeOffset EventTime { get; set; }
         public int CalendarWeek { get; set; }
         public int Year { get; set; }
+        public LogSource Source { get; set; }
     }
 
     public enum LogDirection
@@ -19,4 +20,12 @@ namespace Interfaces
         IN = 1,
         OUT = 2
     }
+
+    public enum LogSource
+    {
+        UNKNOWN=0,
+        IDENTIFIER=1,
+        UI=2,
+        TRAYAPP=3
+    }
 }
\ No newline at end of file
diff --git a/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/LogSourceDb.cs b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/LogSourceDb.cs
new file mode 100644
index 0000000..8cf1ed5
--- /dev/null
+++ b/DataCenter_Windows/WindowsDataCenter/SQLiteRepository/LogSourceDb.cs
@@ -0,0 +1,10 @@
+namespace SQLiteRepository
+{
+    public enum LogSourceDb
+    {
+        UNKNOWN=0,
+        IDENTIFIER = 1,
+        UI = 2,
+        TRAYAPP = 3
+    }
+}
\ No newline at end of file