diff --git a/src/app/core/vapplication.cpp b/src/app/core/vapplication.cpp
index f42e18c3a..74bb563de 100644
--- a/src/app/core/vapplication.cpp
+++ b/src/app/core/vapplication.cpp
@@ -2039,53 +2039,6 @@ QString VApplication::STDescription(const QString &id) const
     return QString();
 }
 
-//---------------------------------------------------------------------------------------------------------------------
-bool VApplication::SafeCopy(const QString &source, const QString &destination, QString &error)
-{
-    bool result = false;
-
-#ifdef Q_OS_WIN32
-    qt_ntfs_permission_lookup++; // turn checking on
-#endif /*Q_OS_WIN32*/
-
-    QFile patternFile(destination);
-    patternFile.setPermissions(QFile::ReadOwner | QFile::WriteOwner);
-    // We need here temporary file because we want restore document after error of copying temp file.
-    QTemporaryFile tempOfPattern;
-    if (tempOfPattern.open())
-    {
-        if (patternFile.exists())
-        {
-            patternFile.copy(tempOfPattern.fileName());
-        }
-    }
-    if ( patternFile.exists() == false || patternFile.remove() )
-    {
-        QFile sourceFile(source);
-        if ( sourceFile.copy(patternFile.fileName()) == false )
-        {
-            error = tr("Could not copy temp file to document file");
-            tempOfPattern.copy(destination);
-            result = false;
-        }
-        else
-        {
-            result = true;
-        }
-    }
-    else
-    {
-        error = tr("Could not remove document file");
-        result = false;
-    }
-
-#ifdef Q_OS_WIN32
-    qt_ntfs_permission_lookup--; // turn off check permission again
-#endif /*Q_OS_WIN32*/
-
-    return result;
-}
-
 //---------------------------------------------------------------------------------------------------------------------
 void VApplication::StartLogging()
 {
diff --git a/src/app/core/vapplication.h b/src/app/core/vapplication.h
index 3b18c6e17..7122d424d 100644
--- a/src/app/core/vapplication.h
+++ b/src/app/core/vapplication.h
@@ -106,7 +106,6 @@ public:
 
     static QStringList LabelLanguages();
     QString            STDescription(const QString &id)const;
-    static bool        SafeCopy(const QString &source, const QString &destination, QString &error);
 
     void               StartLogging();
     QTextStream       *LogFile();
diff --git a/src/app/dialogs/tools/dialogarc.cpp b/src/app/dialogs/tools/dialogarc.cpp
index 7349aedbb..00eef7b31 100644
--- a/src/app/dialogs/tools/dialogarc.cpp
+++ b/src/app/dialogs/tools/dialogarc.cpp
@@ -34,7 +34,7 @@
 
 #include "../../geometry/vpointf.h"
 #include "../../container/vcontainer.h"
-#include "../../xml/vdomdocument.h"
+#include "../../libs/ifc/xml/vdomdocument.h"
 #include "../../visualization/vistoolarc.h"
 
 //---------------------------------------------------------------------------------------------------------------------
diff --git a/src/app/dialogs/tools/dialogdetail.cpp b/src/app/dialogs/tools/dialogdetail.cpp
index 92943718f..b4bded7e0 100644
--- a/src/app/dialogs/tools/dialogdetail.cpp
+++ b/src/app/dialogs/tools/dialogdetail.cpp
@@ -34,7 +34,7 @@
 #include "../../geometry/vpointf.h"
 #include "../../geometry/vsplinepath.h"
 #include "../../container/vcontainer.h"
-#include "../../xml/vdomdocument.h"
+#include "../../libs/ifc/xml/vdomdocument.h"
 
 //---------------------------------------------------------------------------------------------------------------------
 /**
diff --git a/src/app/dialogs/tools/dialogtool.cpp b/src/app/dialogs/tools/dialogtool.cpp
index beb8b405a..f2f40b050 100644
--- a/src/app/dialogs/tools/dialogtool.cpp
+++ b/src/app/dialogs/tools/dialogtool.cpp
@@ -36,7 +36,7 @@
 #include "../../../libs/qmuparser/qmuparsererror.h"
 #include "../../core/vapplication.h"
 #include "../../core/vsettings.h"
-#include "../../xml/vdomdocument.h"
+#include "../../libs/ifc/xml/vdomdocument.h"
 #include <QTimer>
 #include <QCloseEvent>
 #include <QShowEvent>
diff --git a/src/app/mainwindow.cpp b/src/app/mainwindow.cpp
index f32764cfe..372900df2 100644
--- a/src/app/mainwindow.cpp
+++ b/src/app/mainwindow.cpp
@@ -2483,7 +2483,7 @@ void MainWindow::ReopenFilesAfterCrash(QStringList &args)
                 for (int i = 0; i < restoreFiles.size(); ++i)
                 {
                     QString error;
-                    if (VApplication::SafeCopy(restoreFiles.at(i) +".autosave", restoreFiles.at(i), error))
+                    if (VDomDocument::SafeCopy(restoreFiles.at(i) +".autosave", restoreFiles.at(i), error))
                     {
                         QFile autoFile(restoreFiles.at(i) +".autosave");
                         autoFile.remove();
diff --git a/src/app/options.h b/src/app/options.h
index beaf82dbf..5d1c9e37b 100644
--- a/src/app/options.h
+++ b/src/app/options.h
@@ -118,8 +118,6 @@ enum class Vis : unsigned char
 
 enum class Source : char { FromGui, FromFile, FromTool };
 enum class Draw : char { Calculation, Modeling };
-enum class Unit : char { Mm, Cm, Inch };
-enum class MeasurementsType : char { Standard, Individual };
 enum class NodeDetail : char { Contour, Modeling };
 enum class Contour : char { OpenContour, CloseContour };
 enum class EquidistantType : char { OpenEquidistant, CloseEquidistant };
diff --git a/src/app/xml/vabstractmeasurements.cpp b/src/app/xml/vabstractmeasurements.cpp
index 81c6a7f0c..fbf3339b7 100644
--- a/src/app/xml/vabstractmeasurements.cpp
+++ b/src/app/xml/vabstractmeasurements.cpp
@@ -33,7 +33,7 @@ const QString VAbstractMeasurements::AttrValue = QStringLiteral("value");
 
 //---------------------------------------------------------------------------------------------------------------------
 VAbstractMeasurements::VAbstractMeasurements(VContainer *data)
-    :VDomDocument(data)
+    :VDomDocument(), data(data)
 {
     SCASSERT(data != nullptr)
 }
diff --git a/src/app/xml/vabstractmeasurements.h b/src/app/xml/vabstractmeasurements.h
index 5de17cc73..ac64c9828 100644
--- a/src/app/xml/vabstractmeasurements.h
+++ b/src/app/xml/vabstractmeasurements.h
@@ -29,7 +29,8 @@
 #ifndef VABSTRACTMEASUREMENTS_H
 #define VABSTRACTMEASUREMENTS_H
 
-#include "vdomdocument.h"
+#include "../libs/ifc/xml/vdomdocument.h"
+#include "../container/vcontainer.h"
 
 class VAbstractMeasurements : public VDomDocument
 {
@@ -42,6 +43,9 @@ public:
     static const QString AttrValue;
     static qreal UnitConvertor(qreal value, const Unit &from, const Unit &to);
 protected:
+    /** @brief data container with data. */
+    VContainer     *data;
+
     void         Measurement(const QString &tag);
     virtual void ReadMeasurement(const QDomElement &domElement, const QString &tag) = 0;
 private:
diff --git a/src/app/xml/vpattern.cpp b/src/app/xml/vpattern.cpp
index 38b329be0..fc22c61d9 100644
--- a/src/app/xml/vpattern.cpp
+++ b/src/app/xml/vpattern.cpp
@@ -121,7 +121,7 @@ const QString VPattern::IncrementDescription = QStringLiteral("description");
 //---------------------------------------------------------------------------------------------------------------------
 VPattern::VPattern(VContainer *data, Draw *mode, VMainGraphicsScene *sceneDraw,
                    VMainGraphicsScene *sceneDetail, QObject *parent)
-    : QObject(parent), VDomDocument(data), nameActivPP(QString()), tools(QHash<quint32, VDataTool*>()),
+    : QObject(parent), VDomDocument(), data(data), nameActivPP(QString()), tools(QHash<quint32, VDataTool*>()),
       history(QVector<VToolRecord>()), cursor(0), patternPieces(QStringList()), mode(mode), sceneDraw(sceneDraw),
       sceneDetail(sceneDetail)
 {
diff --git a/src/app/xml/vpattern.h b/src/app/xml/vpattern.h
index 50eb05f00..ee2c8e469 100644
--- a/src/app/xml/vpattern.h
+++ b/src/app/xml/vpattern.h
@@ -29,8 +29,9 @@
 #ifndef VPATTERN_H
 #define VPATTERN_H
 
-#include "vdomdocument.h"
+#include "../libs/ifc/xml/vdomdocument.h"
 #include "vtoolrecord.h"
+#include "../container/vcontainer.h"
 
 class VDataTool;
 class VMainGraphicsScene;
@@ -233,6 +234,9 @@ protected:
 private:
     Q_DISABLE_COPY(VPattern)
 
+    /** @brief data container with data. */
+    VContainer     *data;
+
     /** @brief nameActivDraw name current pattern peace. */
     QString        nameActivPP;
 
diff --git a/src/app/xml/xml.pri b/src/app/xml/xml.pri
index b1de7e167..a26d7d4aa 100644
--- a/src/app/xml/xml.pri
+++ b/src/app/xml/xml.pri
@@ -3,7 +3,6 @@
 
 HEADERS += \
     $$PWD/vtoolrecord.h \
-    $$PWD/vdomdocument.h \
     $$PWD/vpattern.h \
     $$PWD/vstandardmeasurements.h \
     $$PWD/vindividualmeasurements.h \
@@ -11,7 +10,6 @@ HEADERS += \
 
 SOURCES += \
     $$PWD/vtoolrecord.cpp \
-    $$PWD/vdomdocument.cpp \
     $$PWD/vpattern.cpp \
     $$PWD/vstandardmeasurements.cpp \
     $$PWD/vindividualmeasurements.cpp \
diff --git a/src/libs/ifc/ifcdef.h b/src/libs/ifc/ifcdef.h
index 6b8915473..79d0c2179 100644
--- a/src/libs/ifc/ifcdef.h
+++ b/src/libs/ifc/ifcdef.h
@@ -31,6 +31,9 @@
 
 #include <csignal>
 
+enum class Unit : char { Mm, Cm, Inch };
+enum class MeasurementsType : char { Standard, Individual };
+
 static const quint32 null_id = 0;
 
 #define NULL_ID null_id//use this value for initialization variables that keeps id values. 0 mean uknown id value.
diff --git a/src/app/xml/vdomdocument.cpp b/src/libs/ifc/xml/vdomdocument.cpp
similarity index 92%
rename from src/app/xml/vdomdocument.cpp
rename to src/libs/ifc/xml/vdomdocument.cpp
index 1d5ac15a0..1dd514e85 100644
--- a/src/app/xml/vdomdocument.cpp
+++ b/src/libs/ifc/xml/vdomdocument.cpp
@@ -27,11 +27,9 @@
  *************************************************************************/
 
 #include "vdomdocument.h"
-#include "../libs/ifc/exception/vexceptionconversionerror.h"
-#include "../libs/ifc/exception/vexceptionemptyparameter.h"
-#include "../libs/ifc/exception/vexceptionbadid.h"
-#include "../options.h"
-#include "../core/vapplication.h"
+#include "exception/vexceptionconversionerror.h"
+#include "exception/vexceptionemptyparameter.h"
+#include "exception/vexceptionbadid.h"
 
 #include <QAbstractMessageHandler>
 #include <QXmlSchema>
@@ -100,8 +98,8 @@ const QString VDomDocument::UnitINCH   = QStringLiteral("inch");
 const QString VDomDocument::TagVersion = QStringLiteral("version");
 
 //---------------------------------------------------------------------------------------------------------------------
-VDomDocument::VDomDocument(VContainer *data)
-    : QDomDocument(), data(data), map(QHash<QString, QDomElement>())
+VDomDocument::VDomDocument()
+    : QDomDocument(), map(QHash<QString, QDomElement>())
 {}
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -536,7 +534,7 @@ bool VDomDocument::SaveDocument(const QString &fileName, QString &error)
         tempFile.close();
     }
     //Copy document to file
-    bool result = VApplication::SafeCopy(temp, fileName, error);
+    bool result = VDomDocument::SafeCopy(temp, fileName, error);
     tempFile.remove();//Clear temp file
 
     return result;
@@ -635,3 +633,50 @@ QDomElement VDomDocument::NodeById(const quint32 &nodeId)
     }
     return domElement;
 }
+
+//---------------------------------------------------------------------------------------------------------------------
+bool VDomDocument::SafeCopy(const QString &source, const QString &destination, QString &error)
+{
+    bool result = false;
+
+#ifdef Q_OS_WIN32
+    qt_ntfs_permission_lookup++; // turn checking on
+#endif /*Q_OS_WIN32*/
+
+    QFile patternFile(destination);
+    patternFile.setPermissions(QFile::ReadOwner | QFile::WriteOwner);
+    // We need here temporary file because we want restore document after error of copying temp file.
+    QTemporaryFile tempOfPattern;
+    if (tempOfPattern.open())
+    {
+        if (patternFile.exists())
+        {
+            patternFile.copy(tempOfPattern.fileName());
+        }
+    }
+    if ( patternFile.exists() == false || patternFile.remove() )
+    {
+        QFile sourceFile(source);
+        if ( sourceFile.copy(patternFile.fileName()) == false )
+        {
+            error = tr("Could not copy temp file to document file");
+            tempOfPattern.copy(destination);
+            result = false;
+        }
+        else
+        {
+            result = true;
+        }
+    }
+    else
+    {
+        error = tr("Could not remove document file");
+        result = false;
+    }
+
+#ifdef Q_OS_WIN32
+    qt_ntfs_permission_lookup--; // turn off check permission again
+#endif /*Q_OS_WIN32*/
+
+    return result;
+}
diff --git a/src/app/xml/vdomdocument.h b/src/libs/ifc/xml/vdomdocument.h
similarity index 97%
rename from src/app/xml/vdomdocument.h
rename to src/libs/ifc/xml/vdomdocument.h
index 132bc8e35..a8e29ebb3 100644
--- a/src/app/xml/vdomdocument.h
+++ b/src/libs/ifc/xml/vdomdocument.h
@@ -31,8 +31,10 @@
 
 #include <QDomDocument>
 #include <QDebug>
-#include "../container/vcontainer.h"
 #include <QLoggingCategory>
+#include <QCoreApplication>
+
+#include "ifcdef.h"
 
 Q_DECLARE_LOGGING_CATEGORY(vXML)
 
@@ -80,7 +82,7 @@ public:
     /**
      * @param data container with variables
      */
-    VDomDocument(VContainer *data);
+    VDomDocument();
     virtual ~VDomDocument();
     QDomElement    elementById(const QString& id);
     void           removeAllChilds(QDomElement &element);
@@ -116,12 +118,12 @@ public:
     QDomNode       ParentNodeById(const quint32 &nodeId);
     QDomElement    CloneNodeById(const quint32 &nodeId);
     QDomElement    NodeById(const quint32 &nodeId);
-protected:
-    /** @brief data container with data. */
-    VContainer     *data;
+    static bool    SafeCopy(const QString &source, const QString &destination, QString &error);
 
+protected:
     void           setTagText(const QString &tag, const QString &text);
     QString        UniqueTagText(const QString &tagName, const QString &defVal = QString()) const;
+
 private:
     Q_DISABLE_COPY(VDomDocument)
     /** @brief Map used for finding element by id. */
diff --git a/src/libs/ifc/xml/xml.pri b/src/libs/ifc/xml/xml.pri
index 9c8d74470..3a23b3a95 100644
--- a/src/libs/ifc/xml/xml.pri
+++ b/src/libs/ifc/xml/xml.pri
@@ -2,7 +2,9 @@
 # This need for corect working file translations.pro
 
 HEADERS += \
-    $$PWD/vabstractconverter.h
+    $$PWD/vabstractconverter.h \
+    $$PWD/vdomdocument.h
 
 SOURCES += \
-    $$PWD/vabstractconverter.cpp
+    $$PWD/vabstractconverter.cpp \
+    $$PWD/vdomdocument.cpp