diff --git a/Core/Code/DataManagement/mitkNodePredicateSource.cpp b/Core/Code/DataManagement/mitkNodePredicateSource.cpp
index bba60312aa..1edc08bf7d 100644
--- a/Core/Code/DataManagement/mitkNodePredicateSource.cpp
+++ b/Core/Code/DataManagement/mitkNodePredicateSource.cpp
@@ -1,41 +1,41 @@
 /*=========================================================================
 
 Program:   Medical Imaging & Interaction Toolkit
 Language:  C++
 Date:      $Date$
 Version:   $Revision$
 
 Copyright (c) German Cancer Research Center, Division of Medical and
 Biological Informatics. All rights reserved.
 See MITKCopyright.txt or http://www.mitk.org/copyright.html for details.
 
 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.
 
 =========================================================================*/
 
 #include "mitkNodePredicateSource.h"
 
 mitk::NodePredicateSource::NodePredicateSource(mitk::DataNode* n, bool allsources, mitk::DataStorage* ds)
 : NodePredicateBase(), m_BaseNode(n), m_SearchAllSources(allsources), m_DataStorage(ds)
 {
 }
 
 mitk::NodePredicateSource::~NodePredicateSource()
 {
 }
 
 
-bool mitk::NodePredicateSource::CheckNode(const mitk::DataNode* node) const
+bool mitk::NodePredicateSource::CheckNode(const mitk::DataNode* childNode) const
 {
   if(m_DataStorage && m_BaseNode)
   {
     const mitk::DataStorage::SetOfObjects::STLContainerType sources = 
-      m_DataStorage->GetSources(node, 0, !m_SearchAllSources)->CastToSTLConstContainer();
+      m_DataStorage->GetSources(childNode, 0, !m_SearchAllSources)->CastToSTLConstContainer();
 
     return std::find(sources.begin(), sources.end(), m_BaseNode) != sources.end();
   }
 
   return false;
 }
diff --git a/Core/Code/DataManagement/mitkNodePredicateSource.h b/Core/Code/DataManagement/mitkNodePredicateSource.h
index 3fa8d9aafb..cf67402da3 100644
--- a/Core/Code/DataManagement/mitkNodePredicateSource.h
+++ b/Core/Code/DataManagement/mitkNodePredicateSource.h
@@ -1,63 +1,63 @@
 /*=========================================================================
 
 Program:   Medical Imaging & Interaction Toolkit
 Language:  C++
 Date:      $Date$
 Version:   $Revision$
 
 Copyright (c) German Cancer Research Center, Division of Medical and
 Biological Informatics. All rights reserved.
 See MITKCopyright.txt or http://www.mitk.org/copyright.html for details.
 
 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.
 
 =========================================================================*/
 
 
 #ifndef MITKNODEPREDICATESOURCE_H_HEADER_INCLUDED_
 #define MITKNODEPREDICATESOURCE_H_HEADER_INCLUDED_
 
 #include "mitkNodePredicateBase.h"
 #include "mitkDataStorage.h"
 #include "mitkDataNode.h"
 #include "mitkWeakPointer.h"
 
 namespace mitk {
 
     //##Documentation
     //## @brief Predicate that evaluates if the given node is a direct or indirect source node of a specific node
     //## 
     //## @warning Calling CheckNode() can be computationally quite expensive for a large DataStorage.
     //##          Alternatively mitk::StandaloneDataStorage::GetSources() can be used 
     //## 
     //## @ingroup DataStorage
     class MITK_CORE_EXPORT NodePredicateSource : public NodePredicateBase
     {
     public:
 
       mitkClassMacro(NodePredicateSource, NodePredicateBase);
       mitkNewMacro3Param(NodePredicateSource, mitk::DataNode*, bool, mitk::DataStorage*);
 
       //##Documentation
       //## @brief Standard Destructor
       virtual ~NodePredicateSource();
 
       //##Documentation
-      //## @brief Checks, if the node is a source node of m_BaseNode (e.g. if m_BaseNode "was created from" node)
-      virtual bool CheckNode(const mitk::DataNode* node) const;
+      //## @brief Checks, if m_BaseNode is a source node of childNode  (e.g. if childNode "was created from" m_BaseNode)
+      virtual bool CheckNode(const mitk::DataNode* childNode) const;
 
     protected:
       //##Documentation
       //## @brief Constructor - This class can either search only for direct source objects or for all source objects
       NodePredicateSource(mitk::DataNode* n, bool allsources, mitk::DataStorage* ds);
 
       mitk::WeakPointer<mitk::DataNode> m_BaseNode;
       bool m_SearchAllSources;
       mitk::WeakPointer<mitk::DataStorage> m_DataStorage;
     };
 
 } // namespace mitk
 
 #endif /* MITKNODEPREDICATESOURCE_H_HEADER_INCLUDED_ */