diff --git a/Modules/IGT/DataManagement/mitkTrackingDeviceSource.h b/Modules/IGT/DataManagement/mitkTrackingDeviceSource.h
index 86212a7f75..f4a849712d 100644
--- a/Modules/IGT/DataManagement/mitkTrackingDeviceSource.h
+++ b/Modules/IGT/DataManagement/mitkTrackingDeviceSource.h
@@ -1,133 +1,134 @@
 /*===================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center,
 Division of Medical and Biological Informatics.
 All rights reserved.
 
 This software is distributed WITHOUT ANY WARRANTY; without
 even the implied warranty of MERCHANTABILITY or FITNESS FOR
 A PARTICULAR PURPOSE.
 
 See LICENSE.txt or http://www.mitk.org for details.
 
 ===================================================================*/
 
-
 #ifndef MITKTRACKINGDEVICESOURCE_H_HEADER_INCLUDED_
 #define MITKTRACKINGDEVICESOURCE_H_HEADER_INCLUDED_
 
 #include <mitkNavigationDataSource.h>
 #include "mitkTrackingDevice.h"
 
 namespace mitk {
   /**Documentation
   * \brief Connects a mitk::TrackingDevice to a MITK-IGT NavigationData-Filterpipeline
   *
   * This class is the source of most navigation pipelines. It encapsulates a mitk::TrackingDevice
   * and provides the position and orientation of the connected mitk::TrackingTool objects
   * as NavigationData objects. Note, that the number of outputs of TrackingDeviceSource
   * is equal to the number of tools connected to the TrackingDevice at the time
   * SetTrackingDevice() is called. If tools are added to the TrackingDevice later,
   * there will not be additional outputs in TrackingDeviceSource. You have to call
   * SetTrackingDevice() again to add the new tools as additional outputs of the filter.
   * Otherwise TrackingDeviceSource will raise an std::out_of_range exception when the filter pipeline is executed.
   * the tool number corresponds with the output number, e.g. trackingDevice-GetTool(0) is
   * the tool that will produce trackingDeviceSourceFilter->GetOutput().
   * \warning If a tool is removed from the tracking device, there will be a mismatch between
   * the outputs and the tool number!
   *
   * \ingroup IGT
   */
   class MitkIGT_EXPORT TrackingDeviceSource : public NavigationDataSource
   {
   public:
     mitkClassMacro(TrackingDeviceSource, NavigationDataSource);
     itkNewMacro(Self);
 
     /**
     * \brief sets the tracking device that will be used as a source for tracking data
     */
     virtual void SetTrackingDevice(mitk::TrackingDevice* td);
 
     /**
     * \brief returns the tracking device that is used by this filter
     */
     itkGetConstObjectMacro(TrackingDevice, mitk::TrackingDevice);
 
     /**
     * \brief Establishes a connection to the tracking device. If there is already a connection
     *        the method does nothing.
     * \warning. Will throw a std::invalid_argument exception if no tracking device was
     * set with SetTrackingDevice(). Will throw a std::runtime_error if the tracking device
     * returns an error.
     */
     void Connect();
 
     /**
     * \brief Closes the connection to the tracking device
     * \warning. Will throw a std::invalid_argument exception if no tracking device was
     * set with SetTrackingDevice(). Will throw a std::runtime_error if the tracking device
     * returns an error.
     */
     void Disconnect();
 
     /**
     * \brief starts tracking.
     * This needs to be called before Update() or GetOutput()->Update(). If the device is already tracking
     * the method does nothing.
     * \warning. Will throw a std::invalid_argument exception if no tracking device was
     * set with SetTrackingDevice(). Will throw a std::runtime_error if the tracking device
     * returns an error.
     */
     void StartTracking();
 
     /**
     * \brief stops tracking.
     * \warning. Will throw a std::invalid_argument exception if no tracking device was
     * set with SetTrackingDevice(). Will throw a std::runtime_error if the tracking device
     * returns an error.
     */
     void StopTracking();
 
     /**
     * \brief returns true if a connection to the tracking device is established
     *
     */
     virtual bool IsConnected();
 
     /**
     * \brief returns true if tracking is in progress
     *
     */
     virtual bool IsTracking();
 
     /**
     * \brief Used for pipeline update
     */
     virtual void UpdateOutputInformation();
 
   protected:
     TrackingDeviceSource();
     virtual ~TrackingDeviceSource();
 
     /**
     * \brief filter execute method
     *
     * queries the tracking device for new position and orientation data for all tools
     * and updates its output NavigationData objects with it.
     * \warning Will raise a std::out_of_range exception, if tools were added to the
     * tracking device after it was set as input for this filter
     */
     virtual void GenerateData();
 
     /**
     * \brief Create the necessary outputs for the TrackingTool objects in m_TrackingDevice
+    *
+    * This Method is called internally whenever outputs need to be reset. Old Outputs are deleted when called.
     **/
     void CreateOutputs();
 
     mitk::TrackingDevice::Pointer m_TrackingDevice;  ///< the tracking device that is used as a source for this filter object
   };
 } // namespace mitk
-#endif /* MITKTrackingDeviceSource_H_HEADER_INCLUDED_ */
+#endif /* MITKTrackingDeviceSource_H_HEADER_INCLUDED_ */
\ No newline at end of file