diff --git a/objectmanager/ObjectManagerIF.h b/objectmanager/ObjectManagerIF.h
index 1f462509a..4bd1d915a 100644
--- a/objectmanager/ObjectManagerIF.h
+++ b/objectmanager/ObjectManagerIF.h
@@ -21,7 +21,7 @@ public:
 	static constexpr uint8_t INTERFACE_ID = CLASS_ID::OBJECT_MANAGER_IF;
 	static constexpr ReturnValue_t INSERTION_FAILED = MAKE_RETURN_CODE( 1 );
 	static constexpr ReturnValue_t NOT_FOUND = MAKE_RETURN_CODE( 2 );
-	static constexpr ReturnValue_t CHILD_INIT_FAILED = MAKE_RETURN_CODE( 3 );
+	static constexpr ReturnValue_t CHILD_INIT_FAILED = MAKE_RETURN_CODE( 3 ); //!< Can be used if the initialization of a SystemObject failed.
 	static constexpr ReturnValue_t INTERNAL_ERR_REPORTER_UNINIT = MAKE_RETURN_CODE( 4 );
 
 protected:
@@ -79,7 +79,7 @@ public:
 /**
  * @brief	This is the forward declaration of the global objectManager instance.
  */
-// maybe but this in the glob namespace to explicitely mark it global?
+// SHOULDDO: maybe put this in the glob namespace to explicitely mark it global?
 extern ObjectManagerIF *objectManager;
 
 /*Documentation can be found in the class method declaration above.*/
diff --git a/objectmanager/SystemObject.h b/objectmanager/SystemObject.h
index 9188693ee..d9c4236d0 100644
--- a/objectmanager/SystemObject.h
+++ b/objectmanager/SystemObject.h
@@ -13,6 +13,7 @@
  * 			class that is announced to ObjectManager. It automatically includes
  * 			itself (and therefore the inheriting class) in the object manager's
  * 			list.
+ * @author	Ulrich Mohr
  * @ingroup system_objects
  */
 class SystemObject: public SystemObjectIF {