diff --git a/Sesssion_analysis.py b/Sesssion_analysis.py
index 30da547..be577e4 100644
--- a/Sesssion_analysis.py
+++ b/Sesssion_analysis.py
@@ -1,18 +1,45 @@
 import tkinter as tk
 from tkinter import ttk
-from tkinter.ttk import *
 
-root = tk.Tk()
-root.geometry('600x400')
-root.title("Tab Widget")
+# Constants
+WINDOW_SIZE = "600x400"
+APP_TITLE = "Session Analysis"
 
-notebook = ttk.Notebook(root)
-live_track = ttk.Frame(notebook)
-session_his = ttk.Frame(notebook)
-notebook.add(live_track, text = 'Live Tracking')
-notebook.add(session_his, text = 'Session History')
 
-notebook.pack()
+def build_live_tracking_tab(parent):
+    """Build the Live Tracking tab interface."""
+    frame = ttk.Frame(parent, padding=10)
+    ttk.Label(frame, text="Live Tracking — TODO").pack(anchor="w")
+    # TODO: Add live tracking functionality here
+    return frame
 
 
-root.mainloop()
+def build_session_history_tab(parent):
+    """Build the Session History tab interface."""
+    frame = ttk.Frame(parent, padding=10)
+    ttk.Label(frame, text="Session History — TODO").pack(anchor="w")
+    # TODO: Add session history functionality here
+    return frame
+
+
+def main():
+    """Main application entry point."""
+    root = tk.Tk()
+    root.geometry(WINDOW_SIZE)
+    root.title(APP_TITLE)
+
+    notebook = ttk.Notebook(root)
+    
+    # Build tabs using helper functions
+    live_track = build_live_tracking_tab(notebook)
+    session_his = build_session_history_tab(notebook)
+
+    notebook.add(live_track, text="Live Tracking")
+    notebook.add(session_his, text="Session History")
+    notebook.pack(expand=True, fill="both")
+
+    root.mainloop()
+
+
+if __name__ == "__main__":
+    main()