diff --git a/src/Checker/Checker.py b/src/Checker/Checker.py
index 92199b8d..6e87a601 100644
--- a/src/Checker/Checker.py
+++ b/src/Checker/Checker.py
@@ -26,6 +26,10 @@ class AbstractModelChecker(object):
     def description(self):
         return self._description
 
+    @property
+    def summary(self):
+        return self._summary
+
     # Checker status
 
     def is_unknown(self):
@@ -53,11 +57,3 @@ class AbstractModelChecker(object):
             otherelse
         """
         raise NotImplementedMethodeError(self, self.run)
-
-    def summary(self):
-        """Return summary message
-
-        Returns:
-            Return summary string
-        """
-        raise NotImplementedMethodeError(self, self.summary)
diff --git a/src/Checker/Study.py b/src/Checker/Study.py
new file mode 100644
index 00000000..d0b84f21
--- /dev/null
+++ b/src/Checker/Study.py
@@ -0,0 +1,36 @@
+# -*- coding: utf-8 -*-
+
+from PyQt5.QtCore import QCoreApplication
+
+from Checker.Checker import AbstractModelChecker, STATUS
+
+_translate = QCoreApplication.translate
+
+
+class StudyNetworkReachChecker(AbstractModelChecker):
+    def __init__(self):
+        super(StudyNetworkReachChecker, self).__init__()
+
+        self._name = _translate("Checker", "Study network reach checker")
+        self._description = _translate("Checker", "Check if exists at least one reach for study")
+
+    def run(self, study):
+        if study is None:
+            self._status = STATUS.ERROR
+            self._summary = "invalid_study"
+            return False
+
+        river = study.river
+        if river is None:
+            self._status = STATUS.ERROR
+            self._summary = "no_river_found"
+            return False
+
+        if len(river.edges()) == 0:
+            self._status = STATUS.ERROR
+            self._summary = "no_reach_defined"
+            return False
+
+        self._summary = "ok"
+        self._status = STATUS.OK
+        return True
diff --git a/src/Model/Study.py b/src/Model/Study.py
index 3ce31c43..5cc485c2 100644
--- a/src/Model/Study.py
+++ b/src/Model/Study.py
@@ -8,6 +8,7 @@ from Model.Serializable import Serializable
 
 from Model.River import River
 
+from Checker.Study import *
 
 class Study(Serializable):
     def __init__(self):
@@ -31,6 +32,14 @@ class Study(Serializable):
         # Study data
         self._river = River(status = self.status)
 
+    @classmethod
+    def checkers(cls):
+        lst = [
+            StudyNetworkReachChecker(),
+        ]
+
+        return lst
+
     @property
     def river(self):
         return self._river
diff --git a/src/Solver/ASolver.py b/src/Solver/ASolver.py
index 830d296e..ba1e511e 100644
--- a/src/Solver/ASolver.py
+++ b/src/Solver/ASolver.py
@@ -56,7 +56,7 @@ class AbstractSolver(object):
         return lst
 
     @classmethod
-    def checker(cls):
+    def checkers(cls):
         lst = [
         ]
 
diff --git a/src/View/CheckList/Table.py b/src/View/CheckList/Table.py
new file mode 100644
index 00000000..071b4907
--- /dev/null
+++ b/src/View/CheckList/Table.py
@@ -0,0 +1,76 @@
+# -*- coding: utf-8 -*-
+
+from tools import trace, timer
+
+from PyQt5.QtCore import (
+    Qt, QVariant, QAbstractTableModel,
+    QCoreApplication, QModelIndex, pyqtSlot,
+    QRect,
+)
+
+from PyQt5.QtGui import (
+    QColor, QBrush,
+)
+
+from PyQt5.QtWidgets import (
+    QDialogButtonBox, QPushButton, QLineEdit,
+    QFileDialog, QTableView, QAbstractItemView,
+    QUndoStack, QShortcut, QAction, QItemDelegate,
+    QComboBox,
+)
+
+_translate = QCoreApplication.translate
+
+
+class TableModel(QAbstractTableModel):
+    def __init__(self, data=None):
+        super(QAbstractTableModel, self).__init__()
+        self._headers = ["name", "status"]
+        self._data = data
+
+    def flags(self, index):
+        options = Qt.ItemIsEnabled | Qt.ItemIsSelectable
+        return options
+
+    def rowCount(self, parent):
+        return len(self._data)
+
+    def columnCount(self, parent):
+        return len(self._headers)
+
+    def data(self, index, role):
+        row = index.row()
+        column = index.column()
+
+        if role == Qt.ForegroundRole:
+            if self._headers[column] == "status":
+                color = Qt.gray
+
+                if self._data[row].is_ok():
+                    color = Qt.green
+                elif self._data[row].is_warning():
+                    color = Qt.yellow
+                elif self._data[row].is_error():
+                    color = Qt.red
+
+                return QBrush(color)
+            return QVariant()
+
+        if role != Qt.ItemDataRole.DisplayRole:
+            return QVariant()
+
+        if self._headers[column] == "name":
+            return self._data[row].name
+        if self._headers[column] == "status":
+            return self._data[row].summary
+
+        return QVariant()
+
+    def headerData(self, section, orientation, role):
+        if role == Qt.ItemDataRole.DisplayRole and orientation == Qt.Orientation.Horizontal:
+            return self._headers[section]
+
+        return QVariant()
+
+    def update(self):
+        self.layoutChanged.emit()
diff --git a/src/View/CheckList/Window.py b/src/View/CheckList/Window.py
new file mode 100644
index 00000000..c83bda9e
--- /dev/null
+++ b/src/View/CheckList/Window.py
@@ -0,0 +1,135 @@
+# -*- coding: utf-8 -*-
+
+import time
+import threading
+
+from tools import trace, timer
+
+from View.ASubWindow import ASubMainWindow
+from View.ListedSubWindow import ListedSubWindow
+
+from PyQt5.QtGui import (
+    QKeySequence,
+)
+
+from PyQt5.QtCore import (
+    Qt, QVariant, QAbstractTableModel,
+    QCoreApplication, QModelIndex, pyqtSlot,
+    QRect,
+)
+
+from PyQt5.QtWidgets import (
+    QDialogButtonBox, QPushButton, QLineEdit,
+    QFileDialog, QTableView, QAbstractItemView,
+    QUndoStack, QShortcut, QAction, QItemDelegate,
+    QComboBox, QVBoxLayout, QHeaderView, QTabWidget,
+    QProgressBar,
+)
+
+from View.CheckList.Table import TableModel
+
+_translate = QCoreApplication.translate
+
+def _run_checker_list(study, checker_list, parent):
+    parent.start_compute()
+    for checker in checker_list:
+        time.sleep(1)
+        checker.run(study)
+        parent.progress()
+    parent.end_compute()
+
+class CheckListWindow(ASubMainWindow, ListedSubWindow):
+    def __init__(self, title="Check list",
+                 study=None, config=None,
+                 solver=None, parent=None):
+        self._title = title + " - " + study.name
+
+        self._study = study
+        self._config = config
+        self._solver = solver
+
+        super(CheckListWindow, self).__init__(
+            name=self._title, ui="CheckList", parent=parent
+        )
+        self.ui.setWindowTitle(self._title)
+
+        self._checker_list = (
+            self._study.checkers() + self._solver.checkers()
+        )
+
+        self.setup_table()
+        self.setup_progress_bar()
+        self.setup_connections()
+        self.setup_thread()
+
+    def setup_table(self):
+        table = self.find(QTableView, f"tableView")
+
+        self._table = TableModel(
+            data = self._checker_list,
+        )
+
+        table.setModel(self._table)
+        table.setSelectionBehavior(QAbstractItemView.SelectRows)
+        table.horizontalHeader().setSectionResizeMode(QHeaderView.Stretch)
+        table.setAlternatingRowColors(True)
+
+    def setup_progress_bar(self):
+        self._progress = self.find(QProgressBar, f"progressBar")
+        self._p = 0             # Progress current step
+
+        self._progress.setRange(0, len(self._checker_list))
+        self._progress.setValue(self._p)
+
+    def setup_connections(self):
+        self.find(QPushButton, "pushButton_ok").clicked.connect(self.accept)
+        self.find(QPushButton, "pushButton_retry").clicked.connect(self.retry)
+        self.find(QPushButton, "pushButton_cancel").clicked.connect(self.reject)
+
+    def setup_thread(self):
+        self._t1 = threading.Thread(
+            target=_run_checker_list,
+            args=(self._study, self._checker_list, self,)
+        )
+        self._t1.start()
+
+    def progress(self):
+        self._p += 1
+        self._progress.setValue(self._p)
+        # self._table.update()
+
+    def start_compute(self):
+        self._p = 0
+        self._progress.setValue(self._p)
+
+    def end_compute(self):
+        self._table.layoutChanged.emit()
+        self.find(QPushButton, "pushButton_retry").setEnabled(True)
+
+        errors = list(filter(lambda c: c.is_error(), self._checker_list))
+        if len(errors) == 0:
+            self.find(QPushButton, "pushButton_ok").setEnabled(True)
+
+    def end(self):
+        # self._t1.join()
+        self.close()
+
+    def retry(self):
+        self._t1.join()
+        self._t1 = threading.Thread(
+            target=_run_checker_list,
+            args=(self._study, self._checker_list, self,)
+        )
+
+        self.find(QPushButton, "pushButton_retry").setEnabled(False)
+        self.find(QPushButton, "pushButton_ok").setEnabled(False)
+
+        self._t1.start()
+
+    def reject(self):
+        print("cancel")
+        self.end()
+
+    def accept(self):
+        print("ok")
+        self.end()
diff --git a/src/View/MainWindow.py b/src/View/MainWindow.py
index bc79d2fb..b7cfa96e 100644
--- a/src/View/MainWindow.py
+++ b/src/View/MainWindow.py
@@ -29,6 +29,7 @@ from View.Stricklers.Window import StricklersWindow
 from View.Sections.Window import SectionsWindow
 from View.SolverParameters.Window import SolverParametersWindow
 from View.RunSolver.Window import SelectSolverWindow
+from View.CheckList.Window import CheckListWindow
 
 from Model.Study import Study
 
@@ -382,6 +383,13 @@ class ApplicationWindow(QMainWindow, ListedSubWindow, WindowToolKit):
         )
         if run.exec():
             solver = run.solver
+            check = CheckListWindow(
+                study = self.model,
+                config = self.conf,
+                solver = solver,
+                parent = self
+            )
+            check.show()
 
     # TODO: Delete me !
     ###############
diff --git a/src/View/ui/CheckList.ui b/src/View/ui/CheckList.ui
index 79589e5e..06e6403c 100644
--- a/src/View/ui/CheckList.ui
+++ b/src/View/ui/CheckList.ui
@@ -16,7 +16,7 @@
   <widget class="QWidget" name="centralwidget">
    <layout class="QGridLayout" name="gridLayout">
     <item row="0" column="0">
-     <widget class="QListView" name="listView"/>
+     <widget class="QTableView" name="tableView"/>
     </item>
     <item row="1" column="0">
      <widget class="QProgressBar" name="progressBar">
@@ -26,31 +26,52 @@
      </widget>
     </item>
     <item row="2" column="0">
-     <widget class="QDialogButtonBox" name="buttonBox">
-      <property name="enabled">
-       <bool>false</bool>
-      </property>
-      <property name="standardButtons">
-       <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok|QDialogButtonBox::Retry</set>
-      </property>
-     </widget>
+     <layout class="QHBoxLayout" name="horizontalLayout">
+      <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>
+      <item>
+       <widget class="QPushButton" name="pushButton_cancel">
+        <property name="text">
+         <string>Cancel</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="pushButton_retry">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="text">
+         <string>Retry</string>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <widget class="QPushButton" name="pushButton_ok">
+        <property name="enabled">
+         <bool>false</bool>
+        </property>
+        <property name="text">
+         <string>Ok</string>
+        </property>
+       </widget>
+      </item>
+     </layout>
     </item>
    </layout>
   </widget>
   <widget class="QStatusBar" name="statusbar"/>
-  <widget class="QToolBar" name="toolBar">
-   <property name="windowTitle">
-    <string>toolBar</string>
-   </property>
-   <attribute name="toolBarArea">
-    <enum>TopToolBarArea</enum>
-   </attribute>
-   <attribute name="toolBarBreak">
-    <bool>false</bool>
-   </attribute>
-   <addaction name="action_retry"/>
-   <addaction name="action_cancel"/>
-  </widget>
   <action name="action_retry">
    <property name="icon">
     <iconset>