diff --git a/edo/src/edoTransform.h b/edo/src/edoTransform.h
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+++ b/edo/src/edoTransform.h
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+/*
+The Evolving Distribution Objects framework (EDO) is a template-based,
+ANSI-C++ evolutionary computation library which helps you to write your
+own estimation of distribution algorithms.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+Copyright (C) 2013 Thales group
+*/
+/*
+Authors:
+    Johann Dréo <johann.dreo@thalesgroup.com>
+*/
+
+#ifndef _edoTransform_h
+#define _edoTransform_h
+
+#include <eo> // eoTransform
+
+/** @defgroup Wrappers
+ *
+ * Wrappers to interact with other parts of the framework
+ */
+
+/** Abstract base class for wrapping an estimator and a sampler as an eoTransform
+ *
+ * @ingroup Wrappers
+ */
+template<class D>
+class edoTransform : public eoTransform< eoPop<typename D::EOType>& >
+{
+public:
+    typedef typename D::EOType EOType;
+
+    edoTransform( edoEstimator<D> & estimator, edoSampler<D> & sampler ) :
+        _estimator(estimator), _sampler(sampler)
+    {}
+
+    virtual void operator()( eoPop<EOType> & pop ) = 0;
+
+protected:
+    edoEstimator<D> & _estimator;
+    edoSampler<D> & _sampler;
+};
+
+
+/** Wrapping an estimator and a sampler as an eoTransform.
+ *
+ * @ingroup Wrappers
+ */
+template<typename D>
+class edoTransformAdaptive : public edoTransform<D>
+{
+public:
+    typedef typename D::EOType EOType;
+
+    edoTransformAdaptive( D & distrib, edoEstimator<D> & estimator, edoSampler<D> & sampler )
+        : _distrib(distrib), _estimator(estimator), _sampler(sampler)
+    {}
+
+    virtual void operator()( eoPop<EOType> & pop )
+    {
+        _distrib = _estimator( pop );
+        pop.clear();
+        for( unsigned int i = 0; i < pop.size(); ++i ) {
+            pop.push_back( _sampler(_distrib) );
+        }
+    }
+
+protected:
+    D & _distrib;
+    edoEstimator<D> & _estimator;
+    edoSampler<D> & _sampler;
+};
+
+
+/** Wrapping an estimator and a sampler as an eoTransform,
+ * the distribution is created at instanciation and replaced at each call.
+ *
+ * @ingroup Wrappers
+ */
+template<typename D>
+class edoTransformStateless : public edoTransformAdaptive<D>
+{
+public:
+    typedef typename D::EOType EOType;
+
+    edoTransformStateless( edoEstimator<D> & estimator, edoSampler<D> & sampler )
+        : edoTransformAdaptive<D>( *(new D), estimator, sampler )
+    {}
+
+    ~edoTransformStateless()
+    {
+        // delete the temporary distrib allocated in constructor
+        delete &(this->_distrib);
+    }
+};
+
+#endif // !_edoTransform_h