diff --git a/src/ui/sources/Ui_dialog_createUser.py b/src/ui/sources/Ui_dialog_createUser.py
new file mode 100644
index 0000000..36c2ff4
--- /dev/null
+++ b/src/ui/sources/Ui_dialog_createUser.py
@@ -0,0 +1,56 @@
+# Form implementation generated from reading ui file 'c:\Users\aky547\GitHub\LibrarySystem\src\ui\sources\dialog_createUser.ui'
+#
+# Created by: PyQt6 UI code generator 6.6.1
+#
+# WARNING: Any manual changes made to this file will be lost when pyuic6 is
+# run again.  Do not edit this file unless you know what you are doing.
+
+
+from PyQt6 import QtCore, QtGui, QtWidgets
+
+
+class Ui_Dialog(object):
+    def setupUi(self, Dialog):
+        Dialog.setObjectName("Dialog")
+        Dialog.setWindowModality(QtCore.Qt.WindowModality.WindowModal)
+        Dialog.resize(400, 132)
+        self.gridLayout = QtWidgets.QGridLayout(Dialog)
+        self.gridLayout.setObjectName("gridLayout")
+        self.userno = QtWidgets.QLineEdit(parent=Dialog)
+        self.userno.setInputMethodHints(QtCore.Qt.InputMethodHint.ImhDigitsOnly)
+        self.userno.setObjectName("userno")
+        self.gridLayout.addWidget(self.userno, 1, 1, 1, 1)
+        self.label_2 = QtWidgets.QLabel(parent=Dialog)
+        self.label_2.setObjectName("label_2")
+        self.gridLayout.addWidget(self.label_2, 1, 0, 1, 1)
+        self.label_3 = QtWidgets.QLabel(parent=Dialog)
+        self.label_3.setObjectName("label_3")
+        self.gridLayout.addWidget(self.label_3, 2, 0, 1, 1)
+        self.user_mail = QtWidgets.QLineEdit(parent=Dialog)
+        self.user_mail.setObjectName("user_mail")
+        self.gridLayout.addWidget(self.user_mail, 2, 1, 1, 1)
+        self.label = QtWidgets.QLabel(parent=Dialog)
+        self.label.setObjectName("label")
+        self.gridLayout.addWidget(self.label, 0, 0, 1, 1)
+        self.username = QtWidgets.QLineEdit(parent=Dialog)
+        self.username.setObjectName("username")
+        self.gridLayout.addWidget(self.username, 0, 1, 1, 1)
+        self.buttonBox = QtWidgets.QDialogButtonBox(parent=Dialog)
+        self.buttonBox.setOrientation(QtCore.Qt.Orientation.Horizontal)
+        self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.StandardButton.Cancel|QtWidgets.QDialogButtonBox.StandardButton.Save)
+        self.buttonBox.setObjectName("buttonBox")
+        self.gridLayout.addWidget(self.buttonBox, 4, 1, 1, 1)
+        spacerItem = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Policy.Minimum, QtWidgets.QSizePolicy.Policy.Expanding)
+        self.gridLayout.addItem(spacerItem, 3, 0, 1, 1)
+
+        self.retranslateUi(Dialog)
+        self.buttonBox.accepted.connect(Dialog.accept) # type: ignore
+        self.buttonBox.rejected.connect(Dialog.reject) # type: ignore
+        QtCore.QMetaObject.connectSlotsByName(Dialog)
+
+    def retranslateUi(self, Dialog):
+        _translate = QtCore.QCoreApplication.translate
+        Dialog.setWindowTitle(_translate("Dialog", "Nutzer anlegen"))
+        self.label_2.setText(_translate("Dialog", "Matrikelnummer"))
+        self.label_3.setText(_translate("Dialog", "Mail"))
+        self.label.setText(_translate("Dialog", "Name, Vorname"))
diff --git a/src/ui/sources/Ui_dialog_extendLoanDuration.py b/src/ui/sources/Ui_dialog_extendLoanDuration.py
new file mode 100644
index 0000000..f6e34f8
--- /dev/null
+++ b/src/ui/sources/Ui_dialog_extendLoanDuration.py
@@ -0,0 +1,38 @@
+# Form implementation generated from reading ui file 'c:\Users\aky547\GitHub\LibrarySystem\src\ui\sources\dialog_extendLoanDuration.ui'
+#
+# Created by: PyQt6 UI code generator 6.6.1
+#
+# WARNING: Any manual changes made to this file will be lost when pyuic6 is
+# run again.  Do not edit this file unless you know what you are doing.
+
+
+from PyQt6 import QtCore, QtGui, QtWidgets
+
+
+class Ui_Dialog(object):
+    def setupUi(self, Dialog):
+        Dialog.setObjectName("Dialog")
+        Dialog.resize(400, 300)
+        self.gridLayout = QtWidgets.QGridLayout(Dialog)
+        self.gridLayout.setObjectName("gridLayout")
+        self.extenduntil = QtWidgets.QCalendarWidget(parent=Dialog)
+        self.extenduntil.setObjectName("extenduntil")
+        self.gridLayout.addWidget(self.extenduntil, 1, 2, 1, 1)
+        self.buttonBox = QtWidgets.QDialogButtonBox(parent=Dialog)
+        self.buttonBox.setOrientation(QtCore.Qt.Orientation.Horizontal)
+        self.buttonBox.setStandardButtons(QtWidgets.QDialogButtonBox.StandardButton.Cancel|QtWidgets.QDialogButtonBox.StandardButton.Ok)
+        self.buttonBox.setObjectName("buttonBox")
+        self.gridLayout.addWidget(self.buttonBox, 2, 2, 1, 1)
+        self.label = QtWidgets.QLabel(parent=Dialog)
+        self.label.setObjectName("label")
+        self.gridLayout.addWidget(self.label, 0, 2, 1, 1)
+
+        self.retranslateUi(Dialog)
+        self.buttonBox.accepted.connect(Dialog.accept) # type: ignore
+        self.buttonBox.rejected.connect(Dialog.reject) # type: ignore
+        QtCore.QMetaObject.connectSlotsByName(Dialog)
+
+    def retranslateUi(self, Dialog):
+        _translate = QtCore.QCoreApplication.translate
+        Dialog.setWindowTitle(_translate("Dialog", "Dialog"))
+        self.label.setText(_translate("Dialog", "Bitte das Verlängerungsdatum auswählen"))
diff --git a/src/ui/sources/Ui_main_UserInterface.py b/src/ui/sources/Ui_main_UserInterface.py
index cb7c6b3..f569841 100644
--- a/src/ui/sources/Ui_main_UserInterface.py
+++ b/src/ui/sources/Ui_main_UserInterface.py
@@ -34,29 +34,36 @@ class Ui_MainWindow(object):
         self.mode.setObjectName("mode")
         self.horizontalLayout.addWidget(self.mode)
         self.gridLayout.addLayout(self.horizontalLayout, 0, 0, 1, 1)
-        self.input_userno = QtWidgets.QLineEdit(parent=self.centralwidget)
-        self.input_userno.setObjectName("input_userno")
-        self.gridLayout.addWidget(self.input_userno, 1, 1, 1, 1)
-        self.label_3 = QtWidgets.QLabel(parent=self.centralwidget)
-        self.label_3.setObjectName("label_3")
-        self.gridLayout.addWidget(self.label_3, 3, 0, 1, 1)
         self.input_file_ident = QtWidgets.QLineEdit(parent=self.centralwidget)
         self.input_file_ident.setObjectName("input_file_ident")
         self.gridLayout.addWidget(self.input_file_ident, 3, 1, 1, 1)
         self.input_username = QtWidgets.QLineEdit(parent=self.centralwidget)
         self.input_username.setObjectName("input_username")
         self.gridLayout.addWidget(self.input_username, 2, 1, 1, 1)
+        self.label_3 = QtWidgets.QLabel(parent=self.centralwidget)
+        self.label_3.setObjectName("label_3")
+        self.gridLayout.addWidget(self.label_3, 3, 0, 1, 1)
+        self.input_userno = QtWidgets.QLineEdit(parent=self.centralwidget)
+        self.input_userno.setObjectName("input_userno")
+        self.gridLayout.addWidget(self.input_userno, 1, 1, 1, 1)
         self.label = QtWidgets.QLabel(parent=self.centralwidget)
         self.label.setObjectName("label")
         self.gridLayout.addWidget(self.label, 1, 0, 1, 1)
         self.label_2 = QtWidgets.QLabel(parent=self.centralwidget)
         self.label_2.setObjectName("label_2")
         self.gridLayout.addWidget(self.label_2, 2, 0, 1, 1)
+        self.label_6 = QtWidgets.QLabel(parent=self.centralwidget)
+        self.label_6.setAlignment(QtCore.Qt.AlignmentFlag.AlignLeading|QtCore.Qt.AlignmentFlag.AlignLeft|QtCore.Qt.AlignmentFlag.AlignVCenter)
+        self.label_6.setObjectName("label_6")
+        self.gridLayout.addWidget(self.label_6, 5, 0, 1, 1)
+        self.duedate = QtWidgets.QDateEdit(parent=self.centralwidget)
+        self.duedate.setObjectName("duedate")
+        self.gridLayout.addWidget(self.duedate, 5, 1, 1, 1)
         spacerItem = QtWidgets.QSpacerItem(20, 40, QtWidgets.QSizePolicy.Policy.Minimum, QtWidgets.QSizePolicy.Policy.Expanding)
-        self.gridLayout.addItem(spacerItem, 4, 0, 1, 1)
+        self.gridLayout.addItem(spacerItem, 6, 0, 1, 1)
         self.verticalLayout.addLayout(self.gridLayout)
         self.groupBox = QtWidgets.QGroupBox(parent=self.centralwidget)
-        self.groupBox.setFocusPolicy(QtCore.Qt.FocusPolicy.WheelFocus)
+        self.groupBox.setFocusPolicy(QtCore.Qt.FocusPolicy.NoFocus)
         self.groupBox.setObjectName("groupBox")
         self.horizontalLayout_2 = QtWidgets.QHBoxLayout(self.groupBox)
         self.horizontalLayout_2.setObjectName("horizontalLayout_2")
@@ -69,24 +76,21 @@ class Ui_MainWindow(object):
         self.groupBox_2.setObjectName("groupBox_2")
         self.gridLayout_2 = QtWidgets.QGridLayout(self.groupBox_2)
         self.gridLayout_2.setObjectName("gridLayout_2")
-        self.label_4 = QtWidgets.QLabel(parent=self.groupBox_2)
-        self.label_4.setObjectName("label_4")
-        self.gridLayout_2.addWidget(self.label_4, 0, 0, 1, 1)
-        self.label_6 = QtWidgets.QLabel(parent=self.groupBox_2)
-        self.label_6.setObjectName("label_6")
-        self.gridLayout_2.addWidget(self.label_6, 1, 0, 1, 1)
         self.btn_show_lentmedia = QtWidgets.QPushButton(parent=self.groupBox_2)
+        self.btn_show_lentmedia.setFocusPolicy(QtCore.Qt.FocusPolicy.ClickFocus)
         self.btn_show_lentmedia.setText("")
         self.btn_show_lentmedia.setObjectName("btn_show_lentmedia")
         self.gridLayout_2.addWidget(self.btn_show_lentmedia, 0, 1, 1, 1)
-        self.duedate = QtWidgets.QDateEdit(parent=self.groupBox_2)
-        self.duedate.setObjectName("duedate")
-        self.gridLayout_2.addWidget(self.duedate, 1, 1, 1, 1)
+        self.label_4 = QtWidgets.QLabel(parent=self.groupBox_2)
+        self.label_4.setAlignment(QtCore.Qt.AlignmentFlag.AlignRight|QtCore.Qt.AlignmentFlag.AlignTrailing|QtCore.Qt.AlignmentFlag.AlignVCenter)
+        self.label_4.setObjectName("label_4")
+        self.gridLayout_2.addWidget(self.label_4, 0, 0, 1, 1)
         self.horizontalLayout_2.addWidget(self.groupBox_2)
-        self.horizontalLayout_2.setStretch(0, 2)
+        self.horizontalLayout_2.setStretch(0, 3)
         self.horizontalLayout_2.setStretch(1, 1)
         self.verticalLayout.addWidget(self.groupBox)
         self.tableWidget = QtWidgets.QTableWidget(parent=self.centralwidget)
+        self.tableWidget.setFocusPolicy(QtCore.Qt.FocusPolicy.NoFocus)
         self.tableWidget.setObjectName("tableWidget")
         self.tableWidget.setColumnCount(2)
         self.tableWidget.setRowCount(0)
@@ -96,6 +100,7 @@ class Ui_MainWindow(object):
         self.tableWidget.setHorizontalHeaderItem(1, item)
         self.verticalLayout.addWidget(self.tableWidget)
         self.verticalLayout.setStretch(1, 10)
+        self.verticalLayout.setStretch(2, 20)
         MainWindow.setCentralWidget(self.centralwidget)
         self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
         self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 22))
@@ -115,7 +120,13 @@ class Ui_MainWindow(object):
         self.menubar.addAction(self.menuDatei.menuAction())
 
         self.retranslateUi(MainWindow)
+        self.actionBeenden.triggered.connect(MainWindow.close) # type: ignore
         QtCore.QMetaObject.connectSlotsByName(MainWindow)
+        MainWindow.setTabOrder(self.input_userno, self.input_username)
+        MainWindow.setTabOrder(self.input_username, self.input_file_ident)
+        MainWindow.setTabOrder(self.input_file_ident, self.groupBox)
+        MainWindow.setTabOrder(self.groupBox, self.tableWidget)
+        MainWindow.setTabOrder(self.tableWidget, self.btn_show_lentmedia)
 
     def retranslateUi(self, MainWindow):
         _translate = QtCore.QCoreApplication.translate
@@ -123,12 +134,12 @@ class Ui_MainWindow(object):
         self.label_5.setText(_translate("MainWindow", "Modus"))
         self.mode.setText(_translate("MainWindow", "Rückgabe"))
         self.label_3.setText(_translate("MainWindow", "ISBN"))
-        self.label.setText(_translate("MainWindow", "Benutzernummer"))
+        self.label.setText(_translate("MainWindow", "Matrikelnummer"))
         self.label_2.setText(_translate("MainWindow", "Benutzername"))
+        self.label_6.setText(_translate("MainWindow", "Ausleihe bis"))
         self.groupBox.setTitle(_translate("MainWindow", "Nutzerdaten"))
         self.groupBox_2.setTitle(_translate("MainWindow", "Ausleihdaten"))
         self.label_4.setText(_translate("MainWindow", "Anzahl Ausleihen"))
-        self.label_6.setText(_translate("MainWindow", "Ausleihe bis"))
         item = self.tableWidget.horizontalHeaderItem(0)
         item.setText(_translate("MainWindow", "ISBN"))
         item = self.tableWidget.horizontalHeaderItem(1)
diff --git a/src/ui/sources/Ui_main_userData.py b/src/ui/sources/Ui_main_userData.py
new file mode 100644
index 0000000..10c7711
--- /dev/null
+++ b/src/ui/sources/Ui_main_userData.py
@@ -0,0 +1,163 @@
+# Form implementation generated from reading ui file 'c:\Users\aky547\GitHub\LibrarySystem\src\ui\sources\main_userData.ui'
+#
+# Created by: PyQt6 UI code generator 6.6.1
+#
+# WARNING: Any manual changes made to this file will be lost when pyuic6 is
+# run again.  Do not edit this file unless you know what you are doing.
+
+
+from PyQt6 import QtCore, QtGui, QtWidgets
+
+
+class Ui_MainWindow(object):
+    def setupUi(self, MainWindow):
+        MainWindow.setObjectName("MainWindow")
+        MainWindow.setWindowModality(QtCore.Qt.WindowModality.ApplicationModal)
+        MainWindow.resize(800, 600)
+        self.centralwidget = QtWidgets.QWidget(parent=MainWindow)
+        self.centralwidget.setObjectName("centralwidget")
+        self.verticalLayout = QtWidgets.QVBoxLayout(self.centralwidget)
+        self.verticalLayout.setObjectName("verticalLayout")
+        self.gridLayout = QtWidgets.QGridLayout()
+        self.gridLayout.setObjectName("gridLayout")
+        self.name = QtWidgets.QLineEdit(parent=self.centralwidget)
+        self.name.setObjectName("name")
+        self.gridLayout.addWidget(self.name, 0, 1, 1, 1)
+        self.label_3 = QtWidgets.QLabel(parent=self.centralwidget)
+        self.label_3.setObjectName("label_3")
+        self.gridLayout.addWidget(self.label_3, 2, 0, 1, 1)
+        self.label_2 = QtWidgets.QLabel(parent=self.centralwidget)
+        self.label_2.setObjectName("label_2")
+        self.gridLayout.addWidget(self.label_2, 1, 0, 1, 1)
+        self.mail = QtWidgets.QLineEdit(parent=self.centralwidget)
+        self.mail.setObjectName("mail")
+        self.gridLayout.addWidget(self.mail, 2, 1, 1, 1)
+        self.label = QtWidgets.QLabel(parent=self.centralwidget)
+        self.label.setObjectName("label")
+        self.gridLayout.addWidget(self.label, 0, 0, 1, 1)
+        self.user_no = QtWidgets.QLineEdit(parent=self.centralwidget)
+        self.user_no.setObjectName("user_no")
+        self.gridLayout.addWidget(self.user_no, 1, 1, 1, 1)
+        self.frame = QtWidgets.QFrame(parent=self.centralwidget)
+        self.frame.setFrameShape(QtWidgets.QFrame.Shape.StyledPanel)
+        self.frame.setFrameShadow(QtWidgets.QFrame.Shadow.Raised)
+        self.frame.setObjectName("frame")
+        self.horizontalLayout = QtWidgets.QHBoxLayout(self.frame)
+        self.horizontalLayout.setObjectName("horizontalLayout")
+        spacerItem = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Policy.Expanding, QtWidgets.QSizePolicy.Policy.Minimum)
+        self.horizontalLayout.addItem(spacerItem)
+        self.btn_userChange_save = QtWidgets.QPushButton(parent=self.frame)
+        self.btn_userChange_save.setStatusTip("")
+        self.btn_userChange_save.setObjectName("btn_userChange_save")
+        self.horizontalLayout.addWidget(self.btn_userChange_save)
+        self.btn_userchange_cancel = QtWidgets.QPushButton(parent=self.frame)
+        self.btn_userchange_cancel.setObjectName("btn_userchange_cancel")
+        self.horizontalLayout.addWidget(self.btn_userchange_cancel)
+        spacerItem1 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Policy.Expanding, QtWidgets.QSizePolicy.Policy.Minimum)
+        self.horizontalLayout.addItem(spacerItem1)
+        self.gridLayout.addWidget(self.frame, 3, 1, 1, 1)
+        self.verticalLayout.addLayout(self.gridLayout)
+        self.line = QtWidgets.QFrame(parent=self.centralwidget)
+        self.line.setFrameShape(QtWidgets.QFrame.Shape.HLine)
+        self.line.setFrameShadow(QtWidgets.QFrame.Shadow.Sunken)
+        self.line.setObjectName("line")
+        self.verticalLayout.addWidget(self.line)
+        self.label_4 = QtWidgets.QLabel(parent=self.centralwidget)
+        font = QtGui.QFont()
+        font.setPointSize(12)
+        self.label_4.setFont(font)
+        self.label_4.setObjectName("label_4")
+        self.verticalLayout.addWidget(self.label_4)
+        self.horizontalLayout_2 = QtWidgets.QHBoxLayout()
+        self.horizontalLayout_2.setObjectName("horizontalLayout_2")
+        self.radio_allLoanedMedia = QtWidgets.QRadioButton(parent=self.centralwidget)
+        self.radio_allLoanedMedia.setObjectName("radio_allLoanedMedia")
+        self.horizontalLayout_2.addWidget(self.radio_allLoanedMedia)
+        self.radio_currentlyLoaned = QtWidgets.QRadioButton(parent=self.centralwidget)
+        self.radio_currentlyLoaned.setObjectName("radio_currentlyLoaned")
+        self.horizontalLayout_2.addWidget(self.radio_currentlyLoaned)
+        self.radio_overdueLoans = QtWidgets.QRadioButton(parent=self.centralwidget)
+        self.radio_overdueLoans.setObjectName("radio_overdueLoans")
+        self.horizontalLayout_2.addWidget(self.radio_overdueLoans)
+        spacerItem2 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Policy.Expanding, QtWidgets.QSizePolicy.Policy.Minimum)
+        self.horizontalLayout_2.addItem(spacerItem2)
+        self.verticalLayout.addLayout(self.horizontalLayout_2)
+        self.horizontalLayout_3 = QtWidgets.QHBoxLayout()
+        self.horizontalLayout_3.setObjectName("horizontalLayout_3")
+        self.searchbox = QtWidgets.QLineEdit(parent=self.centralwidget)
+        self.searchbox.setObjectName("searchbox")
+        self.horizontalLayout_3.addWidget(self.searchbox)
+        self.btn_searchTableContent = QtWidgets.QPushButton(parent=self.centralwidget)
+        self.btn_searchTableContent.setObjectName("btn_searchTableContent")
+        self.horizontalLayout_3.addWidget(self.btn_searchTableContent)
+        spacerItem3 = QtWidgets.QSpacerItem(40, 20, QtWidgets.QSizePolicy.Policy.Expanding, QtWidgets.QSizePolicy.Policy.Minimum)
+        self.horizontalLayout_3.addItem(spacerItem3)
+        self.btn_extendSelectedMedia = QtWidgets.QPushButton(parent=self.centralwidget)
+        self.btn_extendSelectedMedia.setObjectName("btn_extendSelectedMedia")
+        self.horizontalLayout_3.addWidget(self.btn_extendSelectedMedia)
+        self.verticalLayout.addLayout(self.horizontalLayout_3)
+        self.UserMediaTable = QtWidgets.QTableWidget(parent=self.centralwidget)
+        self.UserMediaTable.setMouseTracking(True)
+        self.UserMediaTable.setHorizontalScrollBarPolicy(QtCore.Qt.ScrollBarPolicy.ScrollBarAlwaysOff)
+        self.UserMediaTable.setEditTriggers(QtWidgets.QAbstractItemView.EditTrigger.NoEditTriggers)
+        self.UserMediaTable.setAlternatingRowColors(True)
+        self.UserMediaTable.setSelectionBehavior(QtWidgets.QAbstractItemView.SelectionBehavior.SelectRows)
+        self.UserMediaTable.setObjectName("UserMediaTable")
+        self.UserMediaTable.setColumnCount(6)
+        self.UserMediaTable.setRowCount(0)
+        item = QtWidgets.QTableWidgetItem()
+        self.UserMediaTable.setHorizontalHeaderItem(0, item)
+        item = QtWidgets.QTableWidgetItem()
+        self.UserMediaTable.setHorizontalHeaderItem(1, item)
+        item = QtWidgets.QTableWidgetItem()
+        self.UserMediaTable.setHorizontalHeaderItem(2, item)
+        item = QtWidgets.QTableWidgetItem()
+        self.UserMediaTable.setHorizontalHeaderItem(3, item)
+        item = QtWidgets.QTableWidgetItem()
+        self.UserMediaTable.setHorizontalHeaderItem(4, item)
+        item = QtWidgets.QTableWidgetItem()
+        self.UserMediaTable.setHorizontalHeaderItem(5, item)
+        self.UserMediaTable.horizontalHeader().setDefaultSectionSize(156)
+        self.UserMediaTable.horizontalHeader().setMinimumSectionSize(43)
+        self.UserMediaTable.verticalHeader().setDefaultSectionSize(31)
+        self.UserMediaTable.verticalHeader().setMinimumSectionSize(25)
+        self.verticalLayout.addWidget(self.UserMediaTable)
+        MainWindow.setCentralWidget(self.centralwidget)
+        self.menubar = QtWidgets.QMenuBar(parent=MainWindow)
+        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 22))
+        self.menubar.setObjectName("menubar")
+        MainWindow.setMenuBar(self.menubar)
+        self.statusbar = QtWidgets.QStatusBar(parent=MainWindow)
+        self.statusbar.setSizeGripEnabled(True)
+        self.statusbar.setObjectName("statusbar")
+        MainWindow.setStatusBar(self.statusbar)
+
+        self.retranslateUi(MainWindow)
+        QtCore.QMetaObject.connectSlotsByName(MainWindow)
+
+    def retranslateUi(self, MainWindow):
+        _translate = QtCore.QCoreApplication.translate
+        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
+        self.label_3.setText(_translate("MainWindow", "Mail"))
+        self.label_2.setText(_translate("MainWindow", "Matrikelnummer"))
+        self.label.setText(_translate("MainWindow", "Name, Vorname"))
+        self.btn_userChange_save.setText(_translate("MainWindow", "Speichern"))
+        self.btn_userchange_cancel.setText(_translate("MainWindow", "Abbrechen"))
+        self.label_4.setText(_translate("MainWindow", "Medien"))
+        self.radio_allLoanedMedia.setText(_translate("MainWindow", "Alle Ausleihen"))
+        self.radio_currentlyLoaned.setText(_translate("MainWindow", "Aktuell entliehen"))
+        self.radio_overdueLoans.setText(_translate("MainWindow", "Überzogen"))
+        self.btn_searchTableContent.setText(_translate("MainWindow", "Suchen"))
+        self.btn_extendSelectedMedia.setText(_translate("MainWindow", "Ausgewählte Verlängern"))
+        item = self.UserMediaTable.horizontalHeaderItem(0)
+        item.setText(_translate("MainWindow", "     "))
+        item = self.UserMediaTable.horizontalHeaderItem(1)
+        item.setText(_translate("MainWindow", "ISBN"))
+        item = self.UserMediaTable.horizontalHeaderItem(2)
+        item.setText(_translate("MainWindow", "Signatur"))
+        item = self.UserMediaTable.horizontalHeaderItem(3)
+        item.setText(_translate("MainWindow", "Titel"))
+        item = self.UserMediaTable.horizontalHeaderItem(4)
+        item.setText(_translate("MainWindow", "entliehen am"))
+        item = self.UserMediaTable.horizontalHeaderItem(5)
+        item.setText(_translate("MainWindow", "entliehen bis"))
diff --git a/src/ui/sources/dialog_createUser.ui b/src/ui/sources/dialog_createUser.ui
new file mode 100644
index 0000000..051bb7b
--- /dev/null
+++ b/src/ui/sources/dialog_createUser.ui
@@ -0,0 +1,114 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Dialog</class>
+ <widget class="QDialog" name="Dialog">
+  <property name="windowModality">
+   <enum>Qt::WindowModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>132</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Nutzer anlegen</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="1" column="1">
+    <widget class="QLineEdit" name="userno">
+     <property name="inputMethodHints">
+      <set>Qt::ImhDigitsOnly</set>
+     </property>
+    </widget>
+   </item>
+   <item row="1" column="0">
+    <widget class="QLabel" name="label_2">
+     <property name="text">
+      <string>Matrikelnummer</string>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="0">
+    <widget class="QLabel" name="label_3">
+     <property name="text">
+      <string>Mail</string>
+     </property>
+    </widget>
+   </item>
+   <item row="2" column="1">
+    <widget class="QLineEdit" name="user_mail"/>
+   </item>
+   <item row="0" column="0">
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Name, Vorname</string>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="1">
+    <widget class="QLineEdit" name="username"/>
+   </item>
+   <item row="4" column="1">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Save</set>
+     </property>
+    </widget>
+   </item>
+   <item row="3" column="0">
+    <spacer name="verticalSpacer">
+     <property name="orientation">
+      <enum>Qt::Vertical</enum>
+     </property>
+     <property name="sizeHint" stdset="0">
+      <size>
+       <width>20</width>
+       <height>40</height>
+      </size>
+     </property>
+    </spacer>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>Dialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>Dialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/ui/sources/dialog_extendLoanDuration.ui b/src/ui/sources/dialog_extendLoanDuration.ui
new file mode 100644
index 0000000..786a76d
--- /dev/null
+++ b/src/ui/sources/dialog_extendLoanDuration.ui
@@ -0,0 +1,74 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Dialog</class>
+ <widget class="QDialog" name="Dialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>300</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="1" column="2">
+    <widget class="QCalendarWidget" name="extenduntil"/>
+   </item>
+   <item row="2" column="2">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+   <item row="0" column="2">
+    <widget class="QLabel" name="label">
+     <property name="text">
+      <string>Bitte das Verlängerungsdatum auswählen</string>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>Dialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>Dialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>
diff --git a/src/ui/sources/main_UserInterface.ui b/src/ui/sources/main_UserInterface.ui
index 18d60af..7497c92 100644
--- a/src/ui/sources/main_UserInterface.ui
+++ b/src/ui/sources/main_UserInterface.ui
@@ -14,7 +14,7 @@
    <string>MainWindow</string>
   </property>
   <widget class="QWidget" name="centralwidget">
-   <layout class="QVBoxLayout" name="verticalLayout" stretch="0,10,0">
+   <layout class="QVBoxLayout" name="verticalLayout" stretch="0,10,20">
     <item>
      <layout class="QGridLayout" name="gridLayout">
       <item row="0" column="0">
@@ -47,8 +47,11 @@
         </item>
        </layout>
       </item>
-      <item row="1" column="1">
-       <widget class="QLineEdit" name="input_userno"/>
+      <item row="3" column="1">
+       <widget class="QLineEdit" name="input_file_ident"/>
+      </item>
+      <item row="2" column="1">
+       <widget class="QLineEdit" name="input_username"/>
       </item>
       <item row="3" column="0">
        <widget class="QLabel" name="label_3">
@@ -57,16 +60,13 @@
         </property>
        </widget>
       </item>
-      <item row="3" column="1">
-       <widget class="QLineEdit" name="input_file_ident"/>
-      </item>
-      <item row="2" column="1">
-       <widget class="QLineEdit" name="input_username"/>
+      <item row="1" column="1">
+       <widget class="QLineEdit" name="input_userno"/>
       </item>
       <item row="1" column="0">
        <widget class="QLabel" name="label">
         <property name="text">
-         <string>Benutzernummer</string>
+         <string>Matrikelnummer</string>
         </property>
        </widget>
       </item>
@@ -77,7 +77,20 @@
         </property>
        </widget>
       </item>
-      <item row="4" column="0">
+      <item row="5" column="0">
+       <widget class="QLabel" name="label_6">
+        <property name="text">
+         <string>Ausleihe bis</string>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignVCenter</set>
+        </property>
+       </widget>
+      </item>
+      <item row="5" column="1">
+       <widget class="QDateEdit" name="duedate"/>
+      </item>
+      <item row="6" column="0">
        <spacer name="verticalSpacer">
         <property name="orientation">
          <enum>Qt::Vertical</enum>
@@ -95,12 +108,12 @@
     <item>
      <widget class="QGroupBox" name="groupBox">
       <property name="focusPolicy">
-       <enum>Qt::WheelFocus</enum>
+       <enum>Qt::NoFocus</enum>
       </property>
       <property name="title">
        <string>Nutzerdaten</string>
       </property>
-      <layout class="QHBoxLayout" name="horizontalLayout_2" stretch="2,1">
+      <layout class="QHBoxLayout" name="horizontalLayout_2" stretch="3,1">
        <item>
         <widget class="QTextEdit" name="textEdit">
          <property name="focusPolicy">
@@ -117,29 +130,25 @@
           <string>Ausleihdaten</string>
          </property>
          <layout class="QGridLayout" name="gridLayout_2">
-          <item row="0" column="0">
-           <widget class="QLabel" name="label_4">
-            <property name="text">
-             <string>Anzahl Ausleihen</string>
-            </property>
-           </widget>
-          </item>
-          <item row="1" column="0">
-           <widget class="QLabel" name="label_6">
-            <property name="text">
-             <string>Ausleihe bis</string>
-            </property>
-           </widget>
-          </item>
           <item row="0" column="1">
            <widget class="QPushButton" name="btn_show_lentmedia">
+            <property name="focusPolicy">
+             <enum>Qt::ClickFocus</enum>
+            </property>
             <property name="text">
              <string/>
             </property>
            </widget>
           </item>
-          <item row="1" column="1">
-           <widget class="QDateEdit" name="duedate"/>
+          <item row="0" column="0">
+           <widget class="QLabel" name="label_4">
+            <property name="text">
+             <string>Anzahl Ausleihen</string>
+            </property>
+            <property name="alignment">
+             <set>Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter</set>
+            </property>
+           </widget>
           </item>
          </layout>
         </widget>
@@ -149,6 +158,9 @@
     </item>
     <item>
      <widget class="QTableWidget" name="tableWidget">
+      <property name="focusPolicy">
+       <enum>Qt::NoFocus</enum>
+      </property>
       <column>
        <property name="text">
         <string>ISBN</string>
@@ -193,6 +205,31 @@
    </property>
   </action>
  </widget>
+ <tabstops>
+  <tabstop>input_userno</tabstop>
+  <tabstop>input_username</tabstop>
+  <tabstop>input_file_ident</tabstop>
+  <tabstop>groupBox</tabstop>
+  <tabstop>tableWidget</tabstop>
+  <tabstop>btn_show_lentmedia</tabstop>
+ </tabstops>
  <resources/>
- <connections/>
+ <connections>
+  <connection>
+   <sender>actionBeenden</sender>
+   <signal>triggered()</signal>
+   <receiver>MainWindow</receiver>
+   <slot>close()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>-1</x>
+     <y>-1</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>399</x>
+     <y>299</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
 </ui>
diff --git a/src/ui/sources/main_userData.ui b/src/ui/sources/main_userData.ui
new file mode 100644
index 0000000..b0d8c16
--- /dev/null
+++ b/src/ui/sources/main_userData.ui
@@ -0,0 +1,282 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindow</class>
+ <widget class="QMainWindow" name="MainWindow">
+  <property name="windowModality">
+   <enum>Qt::ApplicationModal</enum>
+  </property>
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>600</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>MainWindow</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QVBoxLayout" name="verticalLayout">
+    <item>
+     <layout class="QGridLayout" name="gridLayout">
+      <item row="0" column="1">
+       <widget class="QLineEdit" name="name"/>
+      </item>
+      <item row="2" column="0">
+       <widget class="QLabel" name="label_3">
+        <property name="text">
+         <string>Mail</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="0">
+       <widget class="QLabel" name="label_2">
+        <property name="text">
+         <string>Matrikelnummer</string>
+        </property>
+       </widget>
+      </item>
+      <item row="2" column="1">
+       <widget class="QLineEdit" name="mail"/>
+      </item>
+      <item row="0" column="0">
+       <widget class="QLabel" name="label">
+        <property name="text">
+         <string>Name, Vorname</string>
+        </property>
+       </widget>
+      </item>
+      <item row="1" column="1">
+       <widget class="QLineEdit" name="user_no"/>
+      </item>
+      <item row="3" column="1">
+       <widget class="QFrame" name="frame">
+        <property name="frameShape">
+         <enum>QFrame::StyledPanel</enum>
+        </property>
+        <property name="frameShadow">
+         <enum>QFrame::Raised</enum>
+        </property>
+        <layout class="QHBoxLayout" name="horizontalLayout">
+         <item>
+          <spacer name="horizontalSpacer_2">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+         <item>
+          <widget class="QPushButton" name="btn_userChange_save">
+           <property name="statusTip">
+            <string/>
+           </property>
+           <property name="text">
+            <string>Speichern</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <widget class="QPushButton" name="btn_userchange_cancel">
+           <property name="text">
+            <string>Abbrechen</string>
+           </property>
+          </widget>
+         </item>
+         <item>
+          <spacer name="horizontalSpacer_3">
+           <property name="orientation">
+            <enum>Qt::Horizontal</enum>
+           </property>
+           <property name="sizeHint" stdset="0">
+            <size>
+             <width>40</width>
+             <height>20</height>
+            </size>
+           </property>
+          </spacer>
+         </item>
+        </layout>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <widget class="Line" name="line">
+      <property name="orientation">
+       <enum>Qt::Horizontal</enum>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <widget class="QLabel" name="label_4">
+      <property name="font">
+       <font>
+        <pointsize>12</pointsize>
+       </font>
+      </property>
+      <property name="text">
+       <string>Medien</string>
+      </property>
+     </widget>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout_2">
+      <item>
+       <widget class="QRadioButton" name="radio_allLoanedMedia">
+        <property name="text">
+         <string>Alle Ausleihen</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="radio_currentlyLoaned">
+        <property name="text">
+         <string>Aktuell entliehen</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QRadioButton" name="radio_overdueLoans">
+        <property name="text">
+         <string>Überzogen</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <layout class="QHBoxLayout" name="horizontalLayout_3">
+      <item>
+       <widget class="QLineEdit" name="searchbox"/>
+      </item>
+      <item>
+       <widget class="QPushButton" name="btn_searchTableContent">
+        <property name="text">
+         <string>Suchen</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <spacer name="horizontalSpacer_4">
+        <property name="orientation">
+         <enum>Qt::Horizontal</enum>
+        </property>
+        <property name="sizeHint" stdset="0">
+         <size>
+          <width>40</width>
+          <height>20</height>
+         </size>
+        </property>
+       </spacer>
+      </item>
+      <item>
+       <widget class="QPushButton" name="btn_extendSelectedMedia">
+        <property name="text">
+         <string>Ausgewählte Verlängern</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </item>
+    <item>
+     <widget class="QTableWidget" name="UserMediaTable">
+      <property name="mouseTracking">
+       <bool>true</bool>
+      </property>
+      <property name="horizontalScrollBarPolicy">
+       <enum>Qt::ScrollBarAlwaysOff</enum>
+      </property>
+      <property name="editTriggers">
+       <set>QAbstractItemView::NoEditTriggers</set>
+      </property>
+      <property name="alternatingRowColors">
+       <bool>true</bool>
+      </property>
+      <property name="selectionBehavior">
+       <enum>QAbstractItemView::SelectRows</enum>
+      </property>
+      <attribute name="horizontalHeaderMinimumSectionSize">
+       <number>43</number>
+      </attribute>
+      <attribute name="horizontalHeaderDefaultSectionSize">
+       <number>156</number>
+      </attribute>
+      <attribute name="verticalHeaderMinimumSectionSize">
+       <number>25</number>
+      </attribute>
+      <attribute name="verticalHeaderDefaultSectionSize">
+       <number>31</number>
+      </attribute>
+      <column>
+       <property name="text">
+        <string>     </string>
+       </property>
+      </column>
+      <column>
+       <property name="text">
+        <string>ISBN</string>
+       </property>
+      </column>
+      <column>
+       <property name="text">
+        <string>Signatur</string>
+       </property>
+      </column>
+      <column>
+       <property name="text">
+        <string>Titel</string>
+       </property>
+      </column>
+      <column>
+       <property name="text">
+        <string>entliehen am</string>
+       </property>
+      </column>
+      <column>
+       <property name="text">
+        <string>entliehen bis</string>
+       </property>
+      </column>
+     </widget>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>22</height>
+    </rect>
+   </property>
+  </widget>
+  <widget class="QStatusBar" name="statusbar">
+   <property name="sizeGripEnabled">
+    <bool>true</bool>
+   </property>
+  </widget>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>