diff --git a/Modules/SegmentationUI/Qmitk/QmitknnUNetFolderParser.h b/Modules/SegmentationUI/Qmitk/QmitknnUNetFolderParser.h
index c8b58854da..d005f62eb3 100644
--- a/Modules/SegmentationUI/Qmitk/QmitknnUNetFolderParser.h
+++ b/Modules/SegmentationUI/Qmitk/QmitknnUNetFolderParser.h
@@ -1,262 +1,281 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.s
 
 ============================================================================*/
 
 #ifndef QmitknnUNetFolderParser_h_Included
 #define QmitknnUNetFolderParser_h_Included
 
 #include "QmitknnUNetToolGUI.h"
 #include <QDirIterator>
 #include <QString>
 #include <vector>
 
+/**
+ * @brief Struct to store each (Folder) Node of the hierarchy tree structure.
+ * 
+ */
 struct FolderNode
 {
   QString name;
   QString path; // parent
   std::vector<std::shared_ptr<FolderNode>> subFolders;
 };
 
+/**
+ * @brief Class to store and retreive folder hierarchy information 
+ * of RESULTS_FOLDER. Only Root node is explicitly stored in m_RootNode.
+ * No. of sub levels in the hierachry is defined in the LEVEL constant.
+ * 
+ */
 class MITKSEGMENTATIONUI_EXPORT QmitknnUNetFolderParser
 {
 public:
 
   /**
    * @brief Construct a new QmitknnUNetFolderParser object
    * Initializes root folder node object pointer calls
    * @param parentFolder 
    */
   QmitknnUNetFolderParser(const QString parentFolder)
   {
     m_RootNode = std::make_shared<FolderNode>();
     m_RootNode->path = parentFolder;
     m_RootNode->name = QString("nnUNet");
     m_RootNode->subFolders.clear();
     InitDirs(m_RootNode, 0);
   }
 
   /**
    * @brief Destroy the QmitknnUNetFolderParser object
    * 
    */
   ~QmitknnUNetFolderParser() = default; /*{ DeleteDirs(m_RootNode, LEVEL); }*/
 
   /**
    * @brief Returns the "Results Folder" string which is parent path of the root node.
    * 
    * @return QString 
    */
   QString getResultsFolder() { return m_RootNode->path; }
 
   /**
    * @brief Returns the Model Names from root node. Template function, 
    * type can be any of stl or Qt containers which supports push_back call.
    * 
    * @tparam T 
-   * @return T 
+   * @return T (any of stl or Qt containers which supports push_back call)
    */
   template <typename T>
   T getModelNames()
   {
     auto models = GetSubFolderNamesFromNode<T>(m_RootNode);
     return models;
   }
   
   /**
    * @brief Returns the task names for a given model. Template function, 
    * type can be any of stl or Qt containers which supports push_back call.
    * 
    * @tparam T 
-   * @return T 
+   * @param modelName
+   * @return T (any of stl or Qt containers which supports push_back call)
    */
   template <typename T>
   T getTasksForModel(const QString &modelName)
   {
     std::shared_ptr<FolderNode> modelNode = GetSubNodeMatchingNameCrietria(modelName, m_RootNode);
     auto tasks = GetSubFolderNamesFromNode<T>(modelNode);
     return tasks;
   }
 
   /**
    * @brief Returns the models names for a given task. Template function, 
    * type can be any of stl or Qt containers which supports push_back call.
    * 
    * @tparam T 
-   * @return T 
+   * @param taskName
+   * @return T (any of stl or Qt containers which supports push_back call)
    */
   template <typename T>
   T getModelsForTask(const QString &taskName)
   {
     T modelsForTask;
     auto models = GetSubFolderNamesFromNode<T>(m_RootNode);
     foreach (QString model, models)
     {
       QStringList taskList = getTasksForModel<QStringList>(model);
       if (taskList.contains(taskName, Qt::CaseInsensitive))
       {
         modelsForTask << model;
       }
     }
     return modelsForTask;
   }
 
   /**
    * @brief Returns the trainer / planner names for a given task & model. Template function, 
    * type can be any of stl or Qt containers which supports push_back call.
    * 
    * @tparam T 
-   * @return T 
+   * @param taskName
+   * @param modelName
+   * @return T (any of stl or Qt containers which supports push_back call)
    */
   template <typename T>
   T getTrainerPlannersForTask(const QString &taskName, const QString &modelName)
   {
     std::shared_ptr<FolderNode> modelNode = GetSubNodeMatchingNameCrietria(modelName, m_RootNode);
     std::shared_ptr<FolderNode> taskNode = GetSubNodeMatchingNameCrietria(taskName, modelNode);
     auto tps = GetSubFolderNamesFromNode<T>(taskNode);
     return tps;
   }
 
   /**
    * @brief Returns the Folds names for a given trainer,planner,task & model name. Template function, 
    * type can be any of stl or Qt containers which supports push_back call.
    * 
    * @tparam T 
-   * @return T 
+   * @param trainer
+   * @param planner
+   * @param taskName
+   * @param modelName
+   * @return T (any of stl or Qt containers which supports push_back call)
    */
   template <typename T>
   T getFoldsForTrainerPlanner(const QString &trainer,
                               const QString &planner,
                               const QString &taskName,
                               const QString &modelName)
   {
     std::shared_ptr<FolderNode> modelNode = GetSubNodeMatchingNameCrietria(modelName, m_RootNode);
     std::shared_ptr<FolderNode> taskNode = GetSubNodeMatchingNameCrietria(taskName, modelNode);
     QString trainerPlanner = trainer + QString("__") + planner;
     std::shared_ptr<FolderNode> tpNode = GetSubNodeMatchingNameCrietria(trainerPlanner, taskNode);
     auto folds = GetSubFolderNamesFromNode<T>(tpNode);
     return folds;
   }
 
 private:
   const int m_LEVEL = 4;
   std::shared_ptr<FolderNode> m_RootNode;
 
   /**
    * @brief Iterates through the root node and returns the sub FolderNode object Matching Name Crietria 
    * 
    * @param queryName 
    * @param parentNode 
    * @return std::shared_ptr<FolderNode> 
    */
   std::shared_ptr<FolderNode> GetSubNodeMatchingNameCrietria(const QString &queryName,
                                                              std::shared_ptr<FolderNode> parentNode)
   {
     std::shared_ptr<FolderNode> retNode;
     std::vector<std::shared_ptr<FolderNode>> subNodes = parentNode->subFolders;
     for (std::shared_ptr<FolderNode> node : subNodes)
     {
       if (node->name == queryName)
       {
         retNode = node;
         break;
       }
     }
     return retNode;
   }
 
   /**
    * @brief Returns the sub folder names for a folder node object. Template function, 
    * type can be any of stl or Qt containers which supports push_back call.
    * 
    * @tparam T 
-   * @return T 
+   * @param std::shared_ptr<FolderNode>
+   * @return T (any of stl or Qt containers which supports push_back call)
    */
   template <typename T>
   T GetSubFolderNamesFromNode(const std::shared_ptr<FolderNode> parent)
   {
     T folders;
     std::vector<std::shared_ptr<FolderNode>> subNodes = parent->subFolders;
     for (std::shared_ptr<FolderNode> folder : subNodes)
     {
       folders.push_back(folder->name);
     }
     return folders;
   }
 
   /**
    * @brief Iterates through the sub folder hierarchy upto a level provided
    * and create a tree structure.
    * 
    * @param parent 
    * @param level 
    */
   void InitDirs(std::shared_ptr<FolderNode> parent, int level)
   {
     QString searchFolder = parent->path + QDir::separator() + parent->name;
     auto subFolders = FetchFoldersFromDir<QStringList>(searchFolder);
     level++;
     foreach (QString folder, subFolders)
     {
       std::shared_ptr<FolderNode> fp = std::make_shared<FolderNode>();
       fp->path = searchFolder;
       fp->name = folder;
       if (level < this->m_LEVEL)
       {
         InitDirs(fp, level);
       }
       parent->subFolders.push_back(fp);
     }
   }
 
   /**
    * @brief Iterates through the sub folder hierarchy upto a level provided
    * and clears the sub folder std::vector from each node.
    * 
    * @param parent 
    * @param level 
    */
   void DeleteDirs(std::shared_ptr<FolderNode> parent, int level)
   {
     level++;
     for (std::shared_ptr<FolderNode> subFolder : parent->subFolders)
     {
       if (level < m_LEVEL)
       {
         DeleteDirs(subFolder, level);
       }
       parent->subFolders.clear();
     }
   }
 
   /**
    * @brief Template function to fetch all folders inside a given path.
    * The type can be any of stl or Qt containers which supports push_back call.
    * 
    * @tparam T 
    * @param path 
    * @return T 
    */
   template <typename T>
   T FetchFoldersFromDir(const QString &path)
   {
     T folders;
     for (QDirIterator it(path, QDir::AllDirs, QDirIterator::NoIteratorFlags); it.hasNext();)
     {
       it.next();
       if (!it.fileName().startsWith('.'))
       {
         folders.push_back(it.fileName());
       }
     }
     return folders;
   }
 };
 #endif