diff --git a/src/backend/dynamic_process.cc b/src/backend/dynamic_process.cc
index 45a376b..669b9b4 100644
--- a/src/backend/dynamic_process.cc
+++ b/src/backend/dynamic_process.cc
@@ -135,7 +135,8 @@ DynamicProcess::get_state() const
 void
 DynamicProcess::serialize(SerializeVisitor& translator) const
 {
-  translator.from_process(*_core);
+  // translator.from_process(*_core);
+  translator.from_process(*this);
 }
 
 StaticProcess&
diff --git a/src/backend/dynamic_thread.cc b/src/backend/dynamic_thread.cc
index 511107b..0dfbf30 100644
--- a/src/backend/dynamic_thread.cc
+++ b/src/backend/dynamic_thread.cc
@@ -102,7 +102,8 @@ DynamicThread::get_requests()
 void
 DynamicThread::serialize(SerializeVisitor& translator) const
 {
-  translator.from_thread(*_core);
+  //translator.from_thread(*_core);
+  translator.from_thread(*this);
 }
 
 StaticThread&
diff --git a/src/backend/serialize_visitor.hh b/src/backend/serialize_visitor.hh
index 27f24ce..988223b 100644
--- a/src/backend/serialize_visitor.hh
+++ b/src/backend/serialize_visitor.hh
@@ -23,9 +23,11 @@
 
 namespace sgpem
 {
+  class History;
+  class Environment;
   class Resource;
-  class StaticProcess;
-  class StaticThread;
+  class Process;
+  class Thread;
   class Request;
   class SubRequest;
 }
@@ -38,15 +40,58 @@ namespace sgpem
 {
   class SerializeVisitor;
 
+  /**
+    \brief Interface class to serialize data
+
+    This class is a virtual class and each method must be reimplemented
+    in derived classes to have effective serialization.
+   */
   class SerializeVisitor
   {
   public:
     virtual ~SerializeVisitor() = 0;
 
+    /**
+      \brief Add output to the serializer taking data from history
+     */
+    virtual void from_history(const History& obj) = 0;
+
+    /**
+      \brief Add output to the serializer taking data from environment
+     */
+    virtual void from_environment(const Environment& obj) = 0;
+
+    /**
+      \brief Add output to the serializer taking data from resource
+      BUG: a resource must be saved with her own associated key.
+     */
     virtual void from_resource(const Resource& obj) = 0;
-    virtual void from_process(const StaticProcess& obj) = 0;
-    virtual void from_thread(const StaticThread& obj) = 0;
+    
+
+    /**
+      \brief Add output to the serializer taking data from resource and key
+      BUG FIXED: This save a resource with her own associated key.
+     */
+    virtual void from_resource(const Resource& obj, const Glib::ustring& key) = 0;
+    
+    /**
+      \brief Add output to the serializer taking data from process
+     */
+    virtual void from_process(const Process& obj) = 0;
+    
+    /**
+      \brief Add output to the serializer taking data from thread
+     */
+    virtual void from_thread(const Thread& obj) = 0;
+    
+    /**
+      \brief Add output to the serializer taking data from request
+     */
     virtual void from_request(const Request& obj) = 0;
+    
+    /**
+      \brief Add output to the serializer taking data from subrequest
+     */
     virtual void from_subrequest(const SubRequest& obj) = 0;
   };
 }