diff --git a/demoapps/DoseAcc/DoseAccApplicationData.h b/demoapps/DoseAcc/DoseAccApplicationData.h
index 53d503a..df9c011 100644
--- a/demoapps/DoseAcc/DoseAccApplicationData.h
+++ b/demoapps/DoseAcc/DoseAccApplicationData.h
@@ -1,85 +1,89 @@
 // -----------------------------------------------------------------------
 // RTToolbox - DKFZ radiotherapy quantitative evaluation library
 //
 // Copyright (c) German Cancer Research Center (DKFZ),
 // Software development for Integrated Diagnostics and Therapy (SIDT).
 // ALL RIGHTS RESERVED.
 // See rttbCopyright.txt or
 // http://www.dkfz.de/en/sidt/projects/rttb/copyright.html
 //
 // This software is distributed WITHOUT ANY WARRANTY; without even
 // the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 // PURPOSE.  See the above copyright notices for more information.
 //
 //------------------------------------------------------------------------
 /*!
 // @file
 // @version $Revision$ (last changed revision)
 // @date    $Date$ (last change date)
 // @author  $Author$ (last changed by)
 */
 
 
 #ifndef __DOSE_ACCAPPLICATION_DATA_H
 #define __DOSE_ACCAPPLICATION_DATA_H
 
 #include "mapRegistration.h"
 
 #include "rttbBaseType.h"
 #include "rttbDoseAccessorInterface.h"
 
 namespace rttb
 {
   namespace apps
   {
     namespace doseAcc
     {
 
       class ApplicationData
       {
       public:
         typedef map::core::Registration<3, 3> RegistrationType;
+        /**Vector of arguments used to specify the loading style (always the first argument)
+         * and, if needed, additional arguments for the specified loading style (e.g. location of the
+         * Virtuos plan file for the Virtuos IO style).
+         */
         typedef std::vector<std::string> LoadingStyleArgType;
         /** Loaded Dose.*/
         core::DoseAccessorInterface::DoseAccessorPointer _Dose1;
         std::string  _dose1FileName;
         LoadingStyleArgType _dose1LoadStyle;
         core::DoseAccessorInterface::DoseAccessorPointer _Dose2;
         std::string  _dose2FileName;
         LoadingStyleArgType _dose2LoadStyle;
         RegistrationType::Pointer _spReg;
         std::string  _regFileName;
 
         std::string  _outputFileName;
 
         double _weightDose1;
         double _weightDose2;
 
         std::string  _interpolatorName;
 
         bool _showVersion;
         bool _showHelp;
 
         int _fileCount;
 
         void Reset();
 
         ApplicationData();
       };
 
       /** Parse the application argument passed when starting the application.
       * If no error or special request occurred the return is 0. Otherwise the return values
       * have the following meaning: \n
       * 0: Normal parsing.\n
       * 1: showed help or version (flag was set).\n
       * 2: not enough required input files.\n
       * 3: Parsing error.\n
       * @param argc Number of parameter arguments
       * @param argv Pointer to the passed arguments
       * @return Result code of the parsing (see above).**/
       unsigned int ParseArgumentsForAppData(int argc, char** argv, ApplicationData& appData);
 
     }
   }
 }
 #endif