diff --git a/src/libaevol/CMakeLists.txt b/src/libaevol/CMakeLists.txt
index 252ae493ee078c5a39ef13e07e892ef2218fb245..9724b53c51c8624ee7fa4de4d5c74bfc043f6da3 100644
--- a/src/libaevol/CMakeLists.txt
+++ b/src/libaevol/CMakeLists.txt
@@ -56,6 +56,8 @@ set(libaevol_sources
   io/parameters/ParamValues.h
   io/Tree.cpp
   io/Tree.h
+  io/UserInterfaceOutput.cpp
+  io/UserInterfaceOutput.h
   io/DnaReplicationReport.cpp
   io/DnaReplicationReport.h
   io/ReplicationReport.cpp
diff --git a/src/libaevol/io/UserInterfaceOutput.cpp b/src/libaevol/io/UserInterfaceOutput.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..8fd96d4683de1a1ff421c6a977c8654237d330a5
--- /dev/null
+++ b/src/libaevol/io/UserInterfaceOutput.cpp
@@ -0,0 +1,31 @@
+// ****************************************************************************
+//
+//          Aevol - An in silico experimental evolution platform
+//
+// ****************************************************************************
+//
+// Copyright: See the AUTHORS file provided with the package or <www.aevol.fr>
+// Web: http://www.aevol.fr/
+// E-mail: See <http://www.aevol.fr/contact/>
+// Original Authors : Guillaume Beslon, Carole Knibbe, David Parsons
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ****************************************************************************
+
+#include "UserInterfaceOutput.h"
+
+namespace aevol {
+
+}
diff --git a/src/libaevol/io/UserInterfaceOutput.h b/src/libaevol/io/UserInterfaceOutput.h
new file mode 100644
index 0000000000000000000000000000000000000000..f2079d7d5161baa472cbcccda4ea0b18b8f13de6
--- /dev/null
+++ b/src/libaevol/io/UserInterfaceOutput.h
@@ -0,0 +1,46 @@
+// ****************************************************************************
+//
+//          Aevol - An in silico experimental evolution platform
+//
+// ****************************************************************************
+//
+// Copyright: See the AUTHORS file provided with the package or <www.aevol.fr>
+// Web: http://www.aevol.fr/
+// E-mail: See <http://www.aevol.fr/contact/>
+// Original Authors : Guillaume Beslon, Carole Knibbe, David Parsons
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program 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 General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program.  If not, see <http://www.gnu.org/licenses/>.
+//
+// ****************************************************************************
+
+#ifndef AEVOL_USERINTERFACEOUTPUT_H_
+#define AEVOL_USERINTERFACEOUTPUT_H_
+
+namespace aevol {
+
+class UserInterfaceOutput {
+ public:
+  UserInterfaceOutput()                                      = delete;
+  UserInterfaceOutput(const UserInterfaceOutput&)            = delete;
+  UserInterfaceOutput(UserInterfaceOutput&&)                 = delete;
+  UserInterfaceOutput& operator=(const UserInterfaceOutput&) = delete;
+  UserInterfaceOutput& operator=(UserInterfaceOutput&&)      = delete;
+  virtual ~UserInterfaceOutput()                             = default;
+
+ protected:
+};
+
+}
+
+#endif  // AEVOL_USERINTERFACEOUTPUT_H_