diff --git a/src/interface/interface_console.hpp b/src/interface/interface_console.hpp
index 974ebb09d18fb3574ef970a062d11d80025bc425..9f92d0235feaf0a0dc172822ea18d73d133a8946 100644
--- a/src/interface/interface_console.hpp
+++ b/src/interface/interface_console.hpp
@@ -155,7 +155,8 @@ public:
 
     /*!
      * \brief Launch an action according to the argument state value.
-     * \arg state : an integer corresponding to a kind of action which must be executed.
+     * \param state An integer corresponding to a kind of action which must be executed.
+     * \param arg Contains necessary arguments needed for the action to launch.
      *
      * This functions triggers an action of ViTE according to its argument. state can takes some values :
      * <ul><li><b>STATE_DISPLAY_HELP</b> -> this value means that the console interface must be displayed
@@ -250,9 +251,9 @@ protected:
 
     /*!
      * \brief Return the state of ViTE according to the arguments.
-     * \arg argc : the number of parameters given when the program was called.
-     * \arg argv : a set of strings which contains each parameter.
-     * \return an integer corresponding to a command which will be processed by ViTE.
+     * \param argc The number of parameters given when the program was called.
+     * \param argv A set of strings which contains each parameter.
+     * \return An integer corresponding to a command which will be processed by ViTE.
      */
     int get_state(int argc, char** argv);
   
@@ -260,9 +261,9 @@ protected:
     
     /*!
      * \brief Extracts the times of start and end in the string.
-     * \arg name : the string where we extract times.
+     * \param name The string where we extract times.
      */
-    void extract_times(const char *name);
+    void extract_times(const char* name);
 
     /*!
      * \brief Displays in the terminal the help text.
@@ -282,8 +283,8 @@ public:
 
     /*!
      * \brief The default constructor of the class.
-     * \param argc : the number of parameters given when the program was called.
-     * \param argv : a set of strings which contains each parameter.
+     * \param argc The number of parameters given when the program was called.
+     * \param argv A set of strings which contains each parameter.
      */
     Interface_console(int argc, char** argv);
     
@@ -342,46 +343,51 @@ public:
      **********************************/
     
     /*!
-      \arg string : the string to be displayed.
-      \brief The function takes a string then displayed it into the terminal, then killed the application.
+     * \brief The function takes a string then displayed it into the terminal, then killed the application.
+     * \param string The string to be displayed.
     */
-    void error(const std::string) const;
+    void error(const std::string string) const;
 
     
     /*!
-      \arg string : the string to be displayed.
       \brief The function takes a string then displayed it into the terminal, then the program go on with an indeterminated behaviour.
+      \param string The string to be displayed.
     */
-    void warning(const std::string) const;
+    void warning(const std::string string) const;
 
  
     /*!
-      \arg string : the string to be displayed.
-      \brief The function takes a strings then displayed it into the terminal, then the program go on.
-    */
-    void information(const std::string) const;
+     * \brief The function takes a strings then displayed it into the terminal, then the program go on.
+     * \param string The string to be displayed.
+     */
+    void information(const std::string string) const;
 
     /*!
-     *\param string : the string to be displayed.
-     *\brief Only use in graphic interface.
+     * \brief Only use in graphic interface.
+     * \param string The string to be displayed.
      */
-    void selection_information(const std::string) const{
+    void selection_information(const std::string string) const{
     }
 
 
     /*!
      *\brief Set the minimum for export
-     *\param d : the double.
+     *\param d The double.
      */
     void set_min_value_for_export(const double d);
 
     /*!
      *\brief Set the minimum for export
-     *\param d : the double.
+     *\param d The double.
      */
     void set_max_value_for_export(const double d);
                                                                     
 public slots:
+    
+    /*!
+     * \brief Update the progress bar value.
+     * \param loaded The percentage of trace which is already loaded.
+     */
     void update_progress_bar(const int loaded);
     
 };
diff --git a/src/interface/interface_graphic.hpp b/src/interface/interface_graphic.hpp
index 7a667ab2e2070ad389dd2d25db70c9669864613c..2b14ee8657a2d0c74fb5a224ebf11d4f87947913 100644
--- a/src/interface/interface_graphic.hpp
+++ b/src/interface/interface_graphic.hpp
@@ -65,8 +65,8 @@ class Interface_graphic : public QMainWindow,  protected Ui::main_window, public
      */
     QAction* _ui_toolbar_check;
 
-    /*
-     *\brief This variable contains the toolbar
+    /*!
+     * \brief This variable contains the toolbar
      */
     QToolBar* _ui_toolbar;
 
@@ -207,9 +207,10 @@ public:
 
     /*!
      * \brief The default constructor
-     * \param parent: the parent widget of the graphical interface. Should be ignored.
+     * \param core The Interface_console object which launch the Interface_graphic. It can be viewed as the application core.
+     * \param parent The parent widget of the graphical interface. Should be ignored.
      */
-    Interface_graphic(Interface_console* core, QWidget *parent = 0);
+    Interface_graphic(Interface_console* core, QWidget* parent = 0);
 
 
     /*!
@@ -226,22 +227,22 @@ public:
      **********************************/
 
     /*!
-     * \param string : the string to be displayed.
-     *\brief The function takes strings and/or numbers then displayed an info box containing it, then the program go on with an indeterminated behaviour.
+     * \brief The function takes strings and/or numbers then displayed an info box containing it, then the program go on with an indeterminated behaviour.
+     * \param string The string to be displayed.
      */
     void error(const std::string string) const;
 
 
     /*!
-     *\param string : the string to be displayed.
-     *\brief The function takes strings and/or numbers then displayed an info box containing it, then the program go on with an indeterminated behaviour.
+     * \brief The function takes strings and/or numbers then displayed an info box containing it, then the program go on with an indeterminated behaviour.
+     * \param string The string to be displayed.
      */
     void warning(const std::string string) const;
 
 
     /*!
-     *\param string : the string to be displayed.
-     *\brief The function takes strings and/or numbers then displayed an info box containing it, then the program go on.
+     * \brief The function takes strings and/or numbers then displayed an info box containing it, then the program go on.
+     * \param string The string to be displayed.
      */
     void information(const std::string string) const;
  
@@ -254,8 +255,8 @@ public:
      **********************************/
 
     /*!
-     *\param string : the string to be displayed.
-     *\brief The function takes strings and/or numbers then displayed it in the entity informative text area in the info window.
+     * \brief The function takes strings and/or numbers then displayed it in the entity informative text area in the info window.
+     * \param string The string to be displayed.
      */
     void selection_information(const std::string string) const;
 
@@ -298,6 +299,7 @@ public:
      * \brief Convert scroll units from real scroll bar unit to render area scroll unit.
      * \param scroll_position The real value to convert.
      * \param axe The choiced axe conversion ('x' for horizontal scrolling or 'y' for vertical scrolling)
+     * \return The converted value.
      */
     Element_pos real_to_virtual_scroll_unit(int scroll_position, const char &axe);
     
@@ -305,6 +307,7 @@ public:
      * \brief Convert scroll units from virtual render area scroll unit to real scroll bar unit.
      * \param scroll_position The virtual value to convert.
      * \param axe The choiced axe conversion ('x' for horizontal scrolling or 'y' for vertical scrolling)
+     * \return The converted value.
      */
     int virtual_to_real_scroll_unit(Element_pos scroll_position, const char &axe);