diff --git a/gui/OBSW_BackendTest.py b/gui/OBSW_BackendTest.py
index a17f9571314b9b861a7b2e2eb1f24fc6458d2588..fd54da03598903f3b3827b3f6c313b204b6e847b 100644
--- a/gui/OBSW_BackendTest.py
+++ b/gui/OBSW_BackendTest.py
@@ -19,6 +19,7 @@ class TmTcBackend(Process):
         while True:
             msg = self.conn.recv()
             # do something with msg
+            # here, the core client could be called to perform operations based on received message
             if msg == 'test':
                 print("Hallo Welt !")
             elif msg == 'close':
diff --git a/gui/OBSW_TmtcGUI.py b/gui/OBSW_TmtcGUI.py
index 665af8217c208914d29eaccf3df8eb3e20c315c2..b6684bba5d6993588d1db8a98a2a37fd965015ec 100644
--- a/gui/OBSW_TmtcGUI.py
+++ b/gui/OBSW_TmtcGUI.py
@@ -26,6 +26,8 @@ import time
 # A third button to perform a keyboard interrupt should be implemented
 # include a really nice source badge and make it large !
 # plan this on paper first...
+# Step 1: Huge Mission Badge in Tkinter window because that is cool.
+# Step 2: Simple buttons to run service test around the badge.
 class TmTcGUI(Process):
     def __init__(self):
         super(TmTcGUI, self).__init__()
diff --git a/sendreceive/OBSW_CommandSenderReceiver.py b/sendreceive/OBSW_CommandSenderReceiver.py
index 60bded93082bab975e59165fc6cceb444590ff00..4288b6d7d949a488fda98272359a61c5e684d67a 100644
--- a/sendreceive/OBSW_CommandSenderReceiver.py
+++ b/sendreceive/OBSW_CommandSenderReceiver.py
@@ -12,8 +12,8 @@ This is still experimental.
 
 @author: R. Mueller
 """
-from config import OBSW_Config as g
 import time
+from config import OBSW_Config as g
 
 
 # Generic TMTC SendReceive class which is implemented
@@ -37,7 +37,7 @@ class CommandSenderReceiver:
         self.doPrintToFile = doPrintToFile
         self.queueEntryIsTelecommand = True
 
-        # needed to store last actual tc packet form queue
+        # needed to store last actual tc packet from queue
         self.lastTc = []
         self.lastTcInfo = []
         # ignore periodic packets for timeout when checking a sequence