diff --git a/crlcore/src/ccore/CMakeLists.txt b/crlcore/src/ccore/CMakeLists.txt
index f08ab824..85ababb3 100644
--- a/crlcore/src/ccore/CMakeLists.txt
+++ b/crlcore/src/ccore/CMakeLists.txt
@@ -34,6 +34,7 @@
                                                crlcore/LefDefExtension.h
                                                crlcore/Ioc.h
                                                crlcore/NetExtension.h
+                                               crlcore/Measures.h
                                                crlcore/RoutingGauge.h
                                                crlcore/RoutingLayerGauge.h
                                                crlcore/CellGauge.h
@@ -92,7 +93,9 @@
                                                toolbox/RoutingPads.cpp
                            )
                        set ( vst_driver_cpps   alliance/vst/VstDriver.cpp )
-                       set ( properties_cpps   properties/NetExtension.cpp )
+                       set ( properties_cpps   properties/NetExtension.cpp
+                                               properties/Measures.cpp
+                           )
 #                      set ( liberty_cpps      liberty/CellPath.cpp
 #                                              liberty/LuTableTemplate.cpp
 #                                              liberty/LibertyTechnology.cpp
diff --git a/crlcore/src/ccore/crlcore/Measures.h b/crlcore/src/ccore/crlcore/Measures.h
new file mode 100644
index 00000000..54ced7e6
--- /dev/null
+++ b/crlcore/src/ccore/crlcore/Measures.h
@@ -0,0 +1,157 @@
+
+// -*- C++ -*-
+//
+// This file is part of the Coriolis Software.
+// Copyright (c) UPMC/LIP6 2008-2010, All Rights Reserved
+//
+// ===================================================================
+//
+// $Id$
+//
+// x-----------------------------------------------------------------x
+// |                                                                 |
+// |                   C O R I O L I S                               |
+// |          Alliance / Hurricane  Interface                        |
+// |                                                                 |
+// |  Author      :                    Jean-Paul Chaput              |
+// |  E-mail      :            Jean-Paul.Chaput@lip6.fr              |
+// | =============================================================== |
+// |  C++ Header  :       "./Measures.h"                             |
+// | *************************************************************** |
+// |  U p d a t e s                                                  |
+// |                                                                 |
+// x-----------------------------------------------------------------x
+
+
+#ifndef  __STATISTICS_PROPERTY__
+#define  __STATISTICS_PROPERTY__
+
+#include  <string>
+#include  <sstream>
+#include  <iomanip>
+#include  <map>
+
+#include  "hurricane/Property.h"
+
+namespace Hurricane {
+  class DBo;
+}
+
+
+namespace CRL {
+
+
+  using Hurricane::Name;
+  using Hurricane::StandardPrivateProperty;
+  using Hurricane::DBo;
+
+
+// -------------------------------------------------------------------
+// Class  :  "CRL::BaseMeasure".
+
+
+  class BaseMeasure {
+    public:
+      inline               BaseMeasure ( const Name& );
+      virtual             ~BaseMeasure ();
+      inline  const Name&  getName     () const;
+      virtual std::string  toString    () const = 0;
+    private:
+      Name          _name;
+  };
+
+
+                     BaseMeasure::~BaseMeasure () {}
+  inline             BaseMeasure::BaseMeasure  ( const Name& name ) : _name(name) {}
+  inline const Name& BaseMeasure::getName      () const { return _name; }
+
+
+  template<typename Data>
+  class Measure : public BaseMeasure {
+    public:
+      inline               Measure  ( const Name&, const Data& );
+      inline  const Data&  getData  () const;
+      inline  void         setData  ( const Data& );
+      virtual std::string  toString () const;
+    private:
+      Data                 _data;
+  };
+
+
+  template<typename Data>
+  inline Measure<Data>::Measure ( const Name& name, const Data& data )
+    : BaseMeasure(name), _data(data) { }
+
+
+  template<typename Data>
+  inline const Data& Measure<Data>::getData () const { return _data; }
+
+  template<typename Data>
+  inline void  Measure<Data>::setData ( const Data& data ) { _data=data; }
+
+  template<typename Data>
+  std::string  Measure<Data>::toString () const
+  { std::ostringstream s; s << std::fixed << std::setprecision(2) << _data; return s.str(); }
+
+
+  class MeasuresSet : public std::map<Name,BaseMeasure*> {
+    public:
+                  ~MeasuresSet     ();
+      std::string  toStringHeaders ( const std::vector<Name>& ) const;
+      std::string  toStringDatas   ( const std::vector<Name>& ) const;
+  };
+
+
+// -------------------------------------------------------------------
+// Class  :  "CRL::MeasuresDatas".
+
+
+  class MeasuresDatas {
+    public:
+                   MeasuresDatas ();
+    public:
+      MeasuresSet  _measures;
+  };
+
+
+// -------------------------------------------------------------------
+// Class  :  "CRL::Measures".
+
+
+  class Measures {
+    public:
+      typedef StandardPrivateProperty<MeasuresDatas> Extension;
+    public:
+      template<typename Data> friend void                 addMeasure   ( DBo*, const Name&, const Data& );
+      template<typename Data> friend const Measure<Data>* getMeasure   ( const DBo*, const Name& );
+                              static const MeasuresSet*   get          ( const DBo* );
+    private:
+                              static Extension*           _getOrCreate ( DBo* );
+  };
+
+
+  template<typename Data>
+  static void  addMeasure ( DBo* object, const Name& name, const Data& data )
+  {
+    Measures::Extension* extension = Measures::_getOrCreate ( object );
+    extension->getValue()._measures.insert ( std::make_pair(name,new Measure<Data>(name,data)) );
+  }
+
+
+  template<typename Data>
+  static Measure<Data>* getMeasure ( DBo* object, const Name& name )
+  {
+    Measures::Extension*   extension = Measures::_getOrCreate ( object );
+    MeasuresSet::iterator  imeasure  = extension->getValue()._measures.find(name);
+
+    if ( imeasure != extension->getValue()._measures.end() )
+      return static_cast< Measure<Data>* >( (*imeasure).second );
+
+    return NULL;
+  }
+
+
+} // End of CRL namespace.
+
+
+#endif  // __STATISTICS_PROPERTY__
diff --git a/crlcore/src/ccore/crlcore/NetExtension.h b/crlcore/src/ccore/crlcore/NetExtension.h
index 780bb340..582ff476 100644
--- a/crlcore/src/ccore/crlcore/NetExtension.h
+++ b/crlcore/src/ccore/crlcore/NetExtension.h
@@ -2,7 +2,7 @@
 // -*- C++ -*-
 //
 // This file is part of the Coriolis Software.
-// Copyright (c) UPMC/LIP6 2008-2008, All Rights Reserved
+// Copyright (c) UPMC/LIP6 2008-2010, All Rights Reserved
 //
 // ===================================================================
 //
diff --git a/crlcore/src/ccore/properties/Measures.cpp b/crlcore/src/ccore/properties/Measures.cpp
new file mode 100644
index 00000000..d4d469ff
--- /dev/null
+++ b/crlcore/src/ccore/properties/Measures.cpp
@@ -0,0 +1,133 @@
+
+// -*- C++ -*-
+//
+// This file is part of the Coriolis Software.
+// Copyright (c) UPMC/LIP6 2008-2010, All Rights Reserved
+//
+// ===================================================================
+//
+// $Id$
+//
+// x-----------------------------------------------------------------x
+// |                                                                 |
+// |                   C O R I O L I S                               |
+// |          Alliance / Hurricane  Interface                        |
+// |                                                                 |
+// |  Author      :                    Jean-Paul Chaput              |
+// |  E-mail      :            Jean-Paul.Chaput@lip6.fr              |
+// | =============================================================== |
+// |  C++ Module  :       "./Measures.cpp"                           |
+// | *************************************************************** |
+// |  U p d a t e s                                                  |
+// |                                                                 |
+// x-----------------------------------------------------------------x
+
+
+#include  <iomanip>
+
+#include  "hurricane/Error.h"
+#include  "hurricane/DBo.h"
+
+#include  "crlcore/Measures.h"
+
+
+namespace CRL {
+
+
+  using std::string;
+  using std::vector;
+  using std::ostringstream;
+  using std::setw;
+  using std::right;
+  using Hurricane::Error;
+  using Hurricane::ForEachIterator;
+
+
+  const char* MissingMeasures = "Measures::%s(): %s missing the Measures extension.";
+
+
+  template<>
+  Name  StandardPrivateProperty<MeasuresDatas>::_name = "CRL::Measures";
+
+  
+// -------------------------------------------------------------------
+// Class  :  "CRL::MeasuresSet".
+
+
+  MeasuresSet::~MeasuresSet ()
+  {
+    iterator imeasure = begin();
+    for ( ; imeasure != end() ; ++imeasure )
+      delete (*imeasure).second;
+  }
+
+
+  string  MeasuresSet::toStringHeaders ( const vector<Name>& names ) const
+  {
+    ostringstream out;
+    out << "#";
+
+    for ( size_t i=0 ; i<names.size() ; ++i ) {
+      const_iterator imeasure = find ( names[i] );
+      if ( imeasure == end() ) continue;
+
+      const BaseMeasure* measure = (*imeasure).second;
+      out << setw(8) << right << measure->getName();
+    }
+
+    return out.str();
+  }
+
+
+  string  MeasuresSet::toStringDatas ( const vector<Name>& names ) const
+  {
+    ostringstream out;
+    out << " ";
+
+    for ( size_t i=0 ; i<names.size() ; ++i ) {
+      const_iterator imeasure = find ( names[i] );
+      if ( imeasure == end() ) continue;
+
+      const BaseMeasure* measure = (*imeasure).second;
+      out << setw(8) << right << measure->toString();
+    }
+
+    return out.str();
+  }
+
+  
+// -------------------------------------------------------------------
+// Class  :  "CRL::MeasuresDatas".
+
+
+  MeasuresDatas::MeasuresDatas ()
+    : _measures()
+  { }
+
+  
+// -------------------------------------------------------------------
+// Class  :  "CRL::Measures".
+
+
+  const MeasuresSet* Measures::get ( const DBo* object )
+  {
+    Extension* extension = Extension::get ( object );
+    if ( extension != NULL )
+      return &extension->getValue()._measures;
+
+    return NULL;
+  }
+
+
+  Measures::Extension* Measures::_getOrCreate ( DBo* object )
+  {
+    Extension* extension = Extension::get ( object );
+    if ( extension == NULL ) {
+      extension = Extension::create ();
+      object->put ( extension );
+    }
+    return extension;
+  }
+
+
+} // End of CRL namespace.
diff --git a/crlcore/src/ccore/properties/NetExtension.cpp b/crlcore/src/ccore/properties/NetExtension.cpp
index d8b40c7b..b6a681ad 100644
--- a/crlcore/src/ccore/properties/NetExtension.cpp
+++ b/crlcore/src/ccore/properties/NetExtension.cpp
@@ -2,7 +2,7 @@
 // -*- C++ -*-
 //
 // This file is part of the Coriolis Software.
-// Copyright (c) UPMC/LIP6 2008-2008, All Rights Reserved
+// Copyright (c) UPMC/LIP6 2008-2010, All Rights Reserved
 //
 // ===================================================================
 //