diff --git a/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.cpp b/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.cpp
new file mode 100644
index 0000000..f0c5fa2
--- /dev/null
+++ b/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.cpp
@@ -0,0 +1,176 @@
+#include <QFile>
+#include <QXmlStreamReader>
+#include <QDomDocument>
+#include <QMessageBox>
+#include "doctaskswidget.h"
+#include "ui_doctaskswidget.h"
+
+DocTasksWidget::DocTasksWidget(QWidget *parent) :
+    QWidget(parent),
+    ui(new Ui::DocTasksWidget)
+{
+    ui->setupUi(this);
+    treeWidget = new QTreeWidget();
+    ui->horizontalLayout_2->addWidget(treeWidget);
+    treeWidget->setStyleSheet(QStringLiteral("font-size: 10pt;"
+                                             "font-family: Tahoma;"));
+
+    loadDocTasksFromXML();
+}
+
+DocTasksWidget::~DocTasksWidget()
+{
+    deleteAllModuls();
+    delete ui;    
+}
+
+void DocTasksWidget::DomElementParser(QDomElement element, Module* moduleParent)
+{
+    QString name;
+
+    QDomElement childElement = element.firstChildElement();
+    if(childElement.isNull())
+        return;
+
+    Module* module = nullptr;
+
+    do
+    {
+        name = childElement.nodeName();
+
+       QDomNamedNodeMap nodeMap = childElement.attributes();
+
+       if(name == "pm")
+       {
+           QString modelIdentCode = nodeMap.namedItem("modelIdentCode").nodeValue();
+           QString pmIssuer = nodeMap.namedItem("pmIssuer").nodeValue();
+           QString pmNumber = nodeMap.namedItem("pmNumber").nodeValue();
+           QString pmVolume = nodeMap.namedItem("pmVolume").nodeValue();
+
+           module = new PM();
+
+           PM* PMmodul = static_cast<PM*>(module);
+
+           PMmodul->initialize(modelIdentCode, pmIssuer, pmNumber, pmVolume);
+
+           if(moduleParent)
+           {
+               PM* PMmodulParent = static_cast<PM*>(moduleParent);
+               PMmodulParent->addChildModule(module);
+           }
+       }
+       else if(name == "dm")
+       {
+           QString modelIdentCode = nodeMap.namedItem("modelIdentCode").nodeValue();
+           QString systemDiffCode = nodeMap.namedItem("systemDiffCode").nodeValue();
+           QString systemCode = nodeMap.namedItem("systemCode").nodeValue();
+           QString subSystemCode = nodeMap.namedItem("subSystemCode").nodeValue();
+           QString subSubSystemCode = nodeMap.namedItem("subSubSystemCode").nodeValue();
+           QString assyCode = nodeMap.namedItem("assyCode").nodeValue();
+           QString disassyCode = nodeMap.namedItem("disassyCode").nodeValue();
+           QString disassyCodeVariant = nodeMap.namedItem("disassyCodeVariant").nodeValue();
+           QString infoCode = nodeMap.namedItem("infoCode").nodeValue();
+           QString infoCodeVariant = nodeMap.namedItem("infoCodeVariant").nodeValue();
+           QString itemLocationCode = nodeMap.namedItem("itemLocationCode").nodeValue();
+
+           module = new DM();
+
+           DM* PMmodul = static_cast<DM*>(module);
+
+           PMmodul->initialize(modelIdentCode,
+                               systemDiffCode,
+                               systemCode,
+                               subSystemCode,
+                               subSubSystemCode,
+                               assyCode,
+                               disassyCode,
+                               disassyCodeVariant,
+                               infoCode,
+                               infoCodeVariant,
+                               itemLocationCode);
+
+           if(moduleParent)
+           {
+               PM* PMmodulParent = static_cast<PM*>(moduleParent);
+               PMmodulParent->addChildModule(module);
+           }
+       }
+       else if(name == "rus" || name == "eng")
+       {
+           if(moduleParent)
+           {
+               if(moduleParent->getType() == ModuleType::TYPE_PM)
+               {//PM
+                   QString title = nodeMap.namedItem("title").nodeValue();
+
+                   PM* PMmodulParent = static_cast<PM*>(moduleParent);
+
+                   if(name == "rus")
+                        PMmodulParent->setLangStructRus(title);
+                   else
+                        PMmodulParent->setLangStructEng(title);
+               }
+               else
+               {//DM
+                   QString techName = nodeMap.namedItem("techName").nodeValue();
+                   QString infoName = nodeMap.namedItem("infoName").nodeValue();
+                   QString pdf = nodeMap.namedItem("pdf").nodeValue();
+                   QString bookmark = nodeMap.namedItem("bookmark").nodeValue();
+                   QString xml = nodeMap.namedItem("xml").nodeValue();
+
+                   DM* DMmodulParent = static_cast<DM*>(moduleParent);
+
+                   if(name == "rus")
+                        DMmodulParent->setLangStructRus(techName, infoName, pdf, bookmark, xml);
+                   else
+                        DMmodulParent->setLangStructEng(techName, infoName, pdf, bookmark, xml);
+               }
+           }
+
+       }
+
+        DomElementParser(childElement, module);
+
+        if(moduleParent == nullptr)
+            listAllModules.append(module);
+
+    }while (! (childElement = childElement.nextSiblingElement()).isNull());
+}
+
+void DocTasksWidget::loadDocTasksFromXML()
+{
+    QDomDocument docTasksDOM;
+    QString xmlFileName = "./docs.xml";
+    QFile xmlInFile(xmlFileName);
+    if (!xmlInFile.open(QFile::ReadOnly | QFile::Text))
+    {
+        QMessageBox::critical(nullptr, tr("Attention!"), tr("The file could not be opened ") + xmlFileName);
+        return;
+    }
+    else
+    {
+        docTasksDOM.setContent(xmlInFile.readAll());
+        xmlInFile.close();
+
+        QDomElement manifestElement = docTasksDOM.firstChildElement("manifest");
+        if(manifestElement.isNull())
+            return;
+
+        deleteAllModuls();
+
+        DomElementParser(manifestElement, nullptr);
+    }
+}
+
+void DocTasksWidget::deleteAllModuls()
+{
+    for(Module* module: listAllModules)
+    {
+        if(module->getType() == ModuleType::TYPE_PM)
+            delete static_cast<PM*>(module);
+        else
+            delete static_cast<DM*>(module);
+    }
+    listAllModules.clear();
+}
+
diff --git a/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.h b/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.h
new file mode 100644
index 0000000..92dd9c7
--- /dev/null
+++ b/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.h
@@ -0,0 +1,34 @@
+#ifndef DOCTASKSWIDGET_H
+#define DOCTASKSWIDGET_H
+
+#include <QWidget>
+#include <QTreeWidget>
+#include <QDomNode>
+#include "module.h"
+
+namespace Ui {
+class DocTasksWidget;
+}
+
+class DocTasksWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    explicit DocTasksWidget(QWidget *parent = nullptr);
+    ~DocTasksWidget();
+
+private:
+    void DomElementParser(QDomElement element, Module* moduleParent);
+    void loadDocTasksFromXML();
+
+    void deleteAllModuls();
+
+private:
+    Ui::DocTasksWidget *ui;
+    QTreeWidget* treeWidget;
+
+    QList<Module*> listAllModules;
+};
+
+#endif // DOCTASKSWIDGET_H
diff --git a/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.ui b/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.ui
new file mode 100644
index 0000000..eb6c97c
--- /dev/null
+++ b/DB_IaT/InstructorsAndTrainees/docTasks/doctaskswidget.ui
@@ -0,0 +1,43 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>DocTasksWidget</class>
+ <widget class="QWidget" name="DocTasksWidget">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="font">
+   <font>
+    <family>Tahoma</family>
+    <pointsize>10</pointsize>
+   </font>
+  </property>
+  <property name="windowTitle">
+   <string>Form</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QGroupBox" name="groupBox">
+       <property name="title">
+        <string>Document</string>
+       </property>
+       <layout class="QGridLayout" name="gridLayout_2">
+        <item row="0" column="0">
+         <layout class="QHBoxLayout" name="horizontalLayout_2"/>
+        </item>
+       </layout>
+      </widget>
+     </item>
+    </layout>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>
diff --git a/DB_IaT/InstructorsAndTrainees/docTasks/module.cpp b/DB_IaT/InstructorsAndTrainees/docTasks/module.cpp
new file mode 100644
index 0000000..797e563
--- /dev/null
+++ b/DB_IaT/InstructorsAndTrainees/docTasks/module.cpp
@@ -0,0 +1,124 @@
+#include "module.h"
+
+Module::Module():
+    type (ModuleType::TYPE_PM),
+    parentModule(nullptr)
+{
+
+}
+
+Module::~Module()
+{
+
+}
+
+
+
+PM::PM():
+    modelIdentCode (""),
+    pmIssuer (""),
+    pmNumber (""),
+    pmVolume ("")
+{
+    type = ModuleType::TYPE_PM;
+
+    langRus.title = "";
+    langEng.title = "";
+}
+
+PM::~PM()
+{
+    for(Module* module: listChildModules)
+    {
+        if(module->getType() == ModuleType::TYPE_PM)
+            delete static_cast<PM*>(module);
+        else
+            delete static_cast<DM*>(module);
+    }
+    listChildModules.clear();
+}
+
+void PM::initialize(QString modelIdentCode, QString pmIssuer, QString pmNumber, QString pmVolume)
+{
+    this->modelIdentCode = modelIdentCode;
+    this->pmIssuer = pmIssuer;
+    this->pmNumber = pmNumber;
+    this->pmVolume = pmVolume;
+}
+
+void PM::setLangStructRus(QString title)
+{
+    langRus.title = title;
+}
+
+void PM::setLangStructEng(QString title)
+{
+    langEng.title = title;
+}
+
+void PM::addChildModule(Module *childModule)
+{
+    listChildModules.append(childModule);
+}
+
+
+
+DM::DM():
+    modelIdentCode (""),
+    systemDiffCode (""),
+    systemCode (""),
+    subSystemCode (""),
+    subSubSystemCode (""),
+    assyCode (""),
+    disassyCode (""),
+    disassyCodeVariant (""),
+    infoCode (""),
+    infoCodeVariant (""),
+    itemLocationCode ("")
+{
+    type = ModuleType::TYPE_DM;
+
+    setLangStructRus("", "", "", "", "");
+    setLangStructEng("", "", "", "", "");
+}
+
+DM::~DM()
+{
+
+}
+
+void DM::initialize(QString modelIdentCode, QString systemDiffCode, QString systemCode,
+                    QString subSystemCode, QString subSubSystemCode, QString assyCode,
+                    QString disassyCode, QString disassyCodeVariant, QString infoCode,
+                    QString infoCodeVariant, QString itemLocationCode)
+{
+    this->modelIdentCode = modelIdentCode;
+    this->systemDiffCode = systemDiffCode;
+    this->systemCode = systemCode;
+    this->subSystemCode = subSystemCode;
+    this->subSubSystemCode = subSubSystemCode;
+    this->assyCode = assyCode;
+    this->disassyCode = disassyCode;
+    this->disassyCodeVariant = disassyCodeVariant;
+    this->infoCode = infoCode;
+    this->infoCodeVariant = infoCodeVariant;
+    this->itemLocationCode = itemLocationCode;
+}
+
+void DM::setLangStructRus(QString techName, QString infoName, QString pdf, QString bookmark, QString xml)
+{
+    langRus.techName = techName;
+    langRus.infoName = infoName;
+    langRus.pdf = pdf;
+    langRus.bookmark = bookmark;
+    langRus.xml = xml;
+}
+
+void DM::setLangStructEng(QString techName, QString infoName, QString pdf, QString bookmark, QString xml)
+{
+    langEng.techName = techName;
+    langEng.infoName = infoName;
+    langEng.pdf = pdf;
+    langEng.bookmark = bookmark;
+    langEng.xml = xml;
+}
diff --git a/DB_IaT/InstructorsAndTrainees/docTasks/module.h b/DB_IaT/InstructorsAndTrainees/docTasks/module.h
new file mode 100644
index 0000000..8c04bf6
--- /dev/null
+++ b/DB_IaT/InstructorsAndTrainees/docTasks/module.h
@@ -0,0 +1,106 @@
+#ifndef MODULE_H
+#define MODULE_H
+#include <QString>
+#include <QList>
+
+enum ModuleType
+{
+    TYPE_PM = 0,
+    TYPE_DM = 1
+};
+
+class Module
+{
+public:
+    Module();
+    ~Module();
+
+    ModuleType getType(){ return type; };
+    void setParentModule(Module* parentModule){ this->parentModule = parentModule; };
+
+protected:
+    ModuleType type;
+    Module* parentModule;
+};
+
+
+class PM : public Module
+{
+public:
+    struct pmLangStruct
+    {
+        QString title;
+    };
+
+public:
+    PM();
+    ~PM();
+
+public:
+    void initialize(QString modelIdentCode, QString pmIssuer, QString pmNumber, QString pmVolume);
+    void setLangStructRus(QString title);
+    void setLangStructEng(QString title);
+    void addChildModule(Module* childModule);
+
+private:
+    QString modelIdentCode;
+    QString pmIssuer;
+    QString pmNumber;
+    QString pmVolume;
+
+    pmLangStruct langRus;
+    pmLangStruct langEng;
+
+    QList<Module*> listChildModules;
+};
+
+
+class DM : public Module
+{
+public:
+    struct dmLangStruct
+    {
+        QString techName;
+        QString infoName;
+        QString pdf;
+        QString bookmark;
+        QString xml;
+    };
+
+public:
+    DM();
+    ~DM();
+
+public:
+    void initialize(QString modelIdentCode,
+    QString systemDiffCode,
+    QString systemCode,
+    QString subSystemCode,
+    QString subSubSystemCode,
+    QString assyCode,
+    QString disassyCode,
+    QString disassyCodeVariant,
+    QString infoCode,
+    QString infoCodeVariant,
+    QString itemLocationCode);
+    void setLangStructRus(QString techName, QString infoName, QString pdf, QString bookmark, QString xml);
+    void setLangStructEng(QString techName, QString infoName, QString pdf, QString bookmark, QString xml);
+
+private:
+    QString modelIdentCode;
+    QString systemDiffCode;
+    QString systemCode;
+    QString subSystemCode;
+    QString subSubSystemCode;
+    QString assyCode;
+    QString disassyCode;
+    QString disassyCodeVariant;
+    QString infoCode;
+    QString infoCodeVariant;
+    QString itemLocationCode;
+
+    dmLangStruct langRus;
+    dmLangStruct langEng;
+};
+
+#endif // MODULE_H
diff --git a/DB_IaT/InstructorsAndTrainees/icons/docTasks.png b/DB_IaT/InstructorsAndTrainees/icons/docTasks.png
new file mode 100644
index 0000000..6c9248d
Binary files /dev/null and b/DB_IaT/InstructorsAndTrainees/icons/docTasks.png differ