diff --git a/ServerLMS/Systems/Parsers/dataparser.cpp b/ServerLMS/Systems/Parsers/dataparser.cpp
index 1a8d63f..44a21fb 100644
--- a/ServerLMS/Systems/Parsers/dataparser.cpp
+++ b/ServerLMS/Systems/Parsers/dataparser.cpp
@@ -87,38 +87,6 @@ QByteArray DataParser::xmlAnswer(QList<SXmlAnswerTag> listTag, QString elemUp1,
 
 }
 
-bool DataParser::loadXMLtoDOM(QString nameFile, QDomDocument *commonDOM)
-{
-    QFile blankFile(nameFile);
-
-    if (! blankFile.open(QFile::ReadOnly | QFile::Text)) {
-        qDebug() << "loadBlankXML: Couldn't read the file: " + nameFile;
-        return false;
-    }
-
-    commonDOM->setContent(blankFile.readAll());
-    blankFile.close();
-
-    return true;
-}
-
-bool DataParser::saveDOMtoXML(QString nameFile, QDomDocument *commonDOM)
-{
-    QFile xmlOutFile(nameFile);
-    if (!xmlOutFile.open(QFile::WriteOnly | QFile::Text))
-    {
-        qDebug() << "saveDOMtoXML: Failed to write a file: " + nameFile;
-        return false;
-    }
-    else
-    {
-        QTextStream outFile(&xmlOutFile);
-        commonDOM->save(outFile, 4);
-        xmlOutFile.close();
-    }
-    return true;
-}
-
 QByteArray DataParser::readTempFile()
 {
     QByteArray array;
diff --git a/ServerLMS/Systems/Parsers/dataparser.h b/ServerLMS/Systems/Parsers/dataparser.h
index c4b2da8..03db361 100644
--- a/ServerLMS/Systems/Parsers/dataparser.h
+++ b/ServerLMS/Systems/Parsers/dataparser.h
@@ -36,8 +36,6 @@ public:
 
     QByteArray xmlAnswer(QList<SXmlAnswerTag> listTag,QString elemUp1 = "", QString elemUp2 = "");
 
-    static bool loadXMLtoDOM(QString nameFile, QDomDocument* commonDOM);
-    static bool saveDOMtoXML(QString nameFile, QDomDocument* commonDOM);
     ~DataParser();
 
     ClientAnswerParser *ClientAnswer() const;
diff --git a/ServerLMS/Systems/Parsers/dbanswerparser.cpp b/ServerLMS/Systems/Parsers/dbanswerparser.cpp
index e835bd3..5ef7fe4 100644
--- a/ServerLMS/Systems/Parsers/dbanswerparser.cpp
+++ b/ServerLMS/Systems/Parsers/dbanswerparser.cpp
@@ -15,7 +15,7 @@ void DBAnswerParser::initialize(DataParser *dataParser)
 QByteArray DBAnswerParser::listInstructors(bool result, QList<Instructor> *listInstructors)
 {
     QDomDocument commonDOM;
-    if(! dataParser->loadXMLtoDOM(":/resources/blankXML/ListInstructors.xml", &commonDOM))
+    if(! Tools::loadXMLtoDOM(":/resources/blankXML/ListInstructors.xml", &commonDOM))
         return QByteArray();
 
     QDomNode listNode = commonDOM.namedItem("ListInstructors");
@@ -34,7 +34,7 @@ QByteArray DBAnswerParser::listInstructors(bool result, QList<Instructor> *listI
         instructorNode.toElement().setAttribute("logged_in", instructor.getLoggedIn());
     }
 
-    dataParser->saveDOMtoXML("ListInstructors.xml", &commonDOM);
+    Tools::saveDOMtoXML("ListInstructors.xml", &commonDOM);
 
     return commonDOM.toByteArray();
 }
@@ -42,7 +42,7 @@ QByteArray DBAnswerParser::listInstructors(bool result, QList<Instructor> *listI
 QByteArray DBAnswerParser::listGroups(bool result, QList<Group> *listGroups)
 {
     QDomDocument commonDOM;
-    if(! dataParser->loadXMLtoDOM(":/resources/blankXML/ListGroups.xml", &commonDOM))
+    if(! Tools::loadXMLtoDOM(":/resources/blankXML/ListGroups.xml", &commonDOM))
         return QByteArray();
 
     QDomNode listNode = commonDOM.namedItem("ListGroups");
@@ -56,7 +56,7 @@ QByteArray DBAnswerParser::listGroups(bool result, QList<Group> *listGroups)
         groupNode.toElement().setAttribute("name", group.getName());
     }
 
-    dataParser->saveDOMtoXML("ListGroups.xml", &commonDOM);
+    Tools::saveDOMtoXML("ListGroups.xml", &commonDOM);
 
     return commonDOM.toByteArray();
 }
@@ -64,7 +64,7 @@ QByteArray DBAnswerParser::listGroups(bool result, QList<Group> *listGroups)
 QByteArray DBAnswerParser::listTrainees(bool result, QList<Trainee> *listTrainees)
 {
     QDomDocument commonDOM;
-    if(! dataParser->loadXMLtoDOM(":/resources/blankXML/ListTrainees.xml", &commonDOM))
+    if(! Tools::loadXMLtoDOM(":/resources/blankXML/ListTrainees.xml", &commonDOM))
         return QByteArray();
 
     QDomNode listNode = commonDOM.namedItem("ListTrainees");
@@ -95,7 +95,7 @@ QByteArray DBAnswerParser::listTrainees(bool result, QList<Trainee> *listTrainee
         timingNode.toElement().setAttribute("operatingTime", timing.getOperatingTimeS());
     }
 
-    dataParser->saveDOMtoXML("ListTrainees.xml", &commonDOM);
+    Tools::saveDOMtoXML("ListTrainees.xml", &commonDOM);
 
     return commonDOM.toByteArray();
 }
@@ -142,7 +142,7 @@ QByteArray DBAnswerParser::listContacts(bool result, QList<ContactModel> *listCo
 QByteArray DBAnswerParser::listTasksAMMofTrainee(bool result, QList<TaskAmmFim> *listTasks, int trainee_id, bool full_list)
 {
     QDomDocument commonDOM;
-    if(! dataParser->loadXMLtoDOM(":/resources/blankXML/ListTasksAMM.xml", &commonDOM))
+    if(! Tools::loadXMLtoDOM(":/resources/blankXML/ListTasksAMM.xml", &commonDOM))
         return QByteArray();
 
     QDomNode listNode = commonDOM.namedItem("ListTasksAMM");
@@ -163,7 +163,7 @@ QByteArray DBAnswerParser::listTasksAMMofTrainee(bool result, QList<TaskAmmFim>
         taskNode.toElement().setAttribute("status", task.status);
     }
 
-    dataParser->saveDOMtoXML("ListTasksAMM.xml", &commonDOM);
+    Tools::saveDOMtoXML("ListTasksAMM.xml", &commonDOM);
 
     return commonDOM.toByteArray();
 }
@@ -171,7 +171,7 @@ QByteArray DBAnswerParser::listTasksAMMofTrainee(bool result, QList<TaskAmmFim>
 QByteArray DBAnswerParser::listTasksFIMofTrainee(bool result, QList<TaskAmmFim> *listTasks, int trainee_id, bool full_list)
 {
     QDomDocument commonDOM;
-    if(! dataParser->loadXMLtoDOM(":/resources/blankXML/ListTasksFIM.xml", &commonDOM))
+    if(! Tools::loadXMLtoDOM(":/resources/blankXML/ListTasksFIM.xml", &commonDOM))
         return QByteArray();
 
     QDomNode listNode = commonDOM.namedItem("ListTasksFIM");
@@ -233,7 +233,7 @@ QByteArray DBAnswerParser::listTasksFIMofTrainee(bool result, QList<TaskAmmFim>
         }
     }
 
-    dataParser->saveDOMtoXML("ListTasksFIM.xml", &commonDOM);
+    Tools::saveDOMtoXML("ListTasksFIM.xml", &commonDOM);
 
     return commonDOM.toByteArray();
 }
diff --git a/ServerLMS/Systems/docsupdater.cpp b/ServerLMS/Systems/docsupdater.cpp
index ba23e0a..ce8d83a 100644
--- a/ServerLMS/Systems/docsupdater.cpp
+++ b/ServerLMS/Systems/docsupdater.cpp
@@ -16,7 +16,7 @@ bool DocsUpdater::update()
     QString pathDocsFile = updateController->getPathAdditionalFile(nameDocsFile);
 
     QDomDocument docTasksDOM;
-    if(! DataParser::loadXMLtoDOM(pathDocsFile, &docTasksDOM))
+    if(! Tools::loadXMLtoDOM(pathDocsFile, &docTasksDOM))
         return false;
 
     QDomElement manifestElement = docTasksDOM.firstChildElement("manifest");
@@ -28,7 +28,7 @@ bool DocsUpdater::update()
 
     domElementParserAMM(manifestElement, nullptr);
 
-    if(! DataParser::saveDOMtoXML(pathDocsFile, &docTasksDOM))
+    if(! Tools::saveDOMtoXML(pathDocsFile, &docTasksDOM))
         return false;
 
     return true;
@@ -229,7 +229,7 @@ QString DocsUpdater::defineCanplayByScenXML(QString dmCode)
     QString pathScenXMLFile = updateController->getPathScensFile(nameScenXMLFile);
 
     QDomDocument docScenDOM;
-    if(! DataParser::loadXMLtoDOM(pathScenXMLFile, &docScenDOM))
+    if(! Tools::loadXMLtoDOM(pathScenXMLFile, &docScenDOM))
         return canplay;
 
     QDomElement scenarioElement = docScenDOM.firstChildElement("scenario");
diff --git a/ServerLMS/Systems/tools.cpp b/ServerLMS/Systems/tools.cpp
index acaa03b..46170d8 100644
--- a/ServerLMS/Systems/tools.cpp
+++ b/ServerLMS/Systems/tools.cpp
@@ -104,3 +104,37 @@ bool Tools::checkNonStaticData(QString path)
 
     return false;
 }
+
+
+
+bool Tools::loadXMLtoDOM(QString nameFile, QDomDocument *commonDOM)
+{
+    QFile xmlInFile(nameFile);
+
+    if (! xmlInFile.open(QFile::ReadOnly | QFile::Text)) {
+        qDebug() << "loadXMLtoDOM: Couldn't read the file: " + nameFile;
+        return false;
+    }
+
+    commonDOM->setContent(xmlInFile.readAll());
+    xmlInFile.close();
+
+    return true;
+}
+
+bool Tools::saveDOMtoXML(QString nameFile, QDomDocument *commonDOM)
+{
+    QFile xmlOutFile(nameFile);
+    if (!xmlOutFile.open(QFile::WriteOnly | QFile::Text))
+    {
+        qDebug() << "saveDOMtoXML: Failed to write a file: " + nameFile;
+        return false;
+    }
+    else
+    {
+        QTextStream outFile(&xmlOutFile);
+        commonDOM->save(outFile, 4);
+        xmlOutFile.close();
+    }
+    return true;
+}
diff --git a/ServerLMS/Systems/tools.h b/ServerLMS/Systems/tools.h
index 90769ef..a9d7d4a 100644
--- a/ServerLMS/Systems/tools.h
+++ b/ServerLMS/Systems/tools.h
@@ -7,6 +7,7 @@
 #include <QDebug>
 #include <QTime>
 #include <QDir>
+#include <QDomDocument>
 
 #include <Data/StreamingVersionData.h>
 
@@ -73,6 +74,9 @@ public:
     static QString createVersionHashFilepath(QString fileName);
     static QString createFullPath(QString path);
     static bool checkNonStaticData(QString path);
+
+    static bool loadXMLtoDOM(QString nameFile, QDomDocument* commonDOM);
+    static bool saveDOMtoXML(QString nameFile, QDomDocument* commonDOM);
 };