diff --git a/src/SimNDT/gui/checkSimulationController.py b/src/SimNDT/gui/checkSimulationController.py
new file mode 100644
index 0000000..5a1b260
--- /dev/null
+++ b/src/SimNDT/gui/checkSimulationController.py
@@ -0,0 +1,136 @@
+__author__ = 'Miguel Molero'
+
+import os, sys
+import numpy as np
+from PySide.QtCore import *
+from PySide.QtGui import *
+
+from SimNDT.gui.ui_checksimulation import Ui_checkSimulationDialog
+from SimNDT.gui.Warnings import WarningParms
+import SimNDT.gui.constants as c
+
+
+import SimNDT.core.checkSimulation as CheckSim
+
+
+
+class CheckSimulation(QDialog, Ui_checkSimulationDialog):
+
+	def __init__(self, Scenario, Materials, Boundaries, Transducers, Inspection, Signal, Simulation, parent = None):
+		super(CheckSimulation, self).__init__(parent)
+		self.setupUi(self)
+
+
+
+		self.closePushButton.pressed.connect(self.close)
+
+		self.treeWidget.clear()
+		self.dispatcher = ['Scenario', 'Materials','Boundary','Inspection Method', 'Simulation Setup']
+
+		self.treeWidget.setColumnCount(2)
+		self.treeWidget.setHeaderLabels(["Setup","Comments"])
+		self.treeWidget.setAlternatingRowColors(True)
+		self.treeWidget.header().resizeSection(0, 220)
+
+
+		self.Boundaries = Boundaries
+		self.Scenario   = Scenario
+		self.Inspection = Inspection
+
+		self.passAll = False
+
+		scenario_tree = QTreeWidgetItem(self.treeWidget)
+		scenario_tree.setText(0,"Scenario")
+		scenario_tree.setIcon(0,QIcon(":/mark.png"))
+
+
+		material_tree = QTreeWidgetItem(self.treeWidget)
+		material_tree.setText(0,"Material")
+		material_tree.setIcon(0,QIcon(":/mark.png"))
+
+
+		self.message1 = None
+		self.message2 = None
+		self.message3 = None
+		self.message4 = None
+		self.message5 = None
+
+		case = CheckSim.labels(Scenario, Materials)
+
+		if case == 1:
+			self.message1 =  "Number of labels in scenario is higher than the number of the defined materials. "
+
+		#elif case == 2:
+		#	self.message1 =  "Number of labels in scenario is lower than the number of the defined materials. "
+
+
+		case = CheckSim.materials(Materials)
+		if case == 1:
+			self.message2 = "Repeated labels in Materials!!!. "
+
+		case =  CheckSim.isLabelsEquals(Scenario, Materials)
+		if case == 1:
+			self.message3 =  "Scenario Labels do not coincide with Material Labels!!!. "
+
+
+		message = ""
+		if self.message1 is not None:
+			message +=self.message1
+			material_tree.setIcon(0,QIcon(":/cross.png"))
+
+		if self.message2 is not None:
+			message += self.message2
+			material_tree.setIcon(0,QIcon(":/cross.png"))
+
+		if self.message3 is not None:
+			message += self.message3
+			material_tree.setIcon(0,QIcon(":/cross.png"))
+
+		material_tree.setText(1,message)
+
+
+
+		Scenario, Boundaries, isChange = CheckSim.boundariesReLoad(Scenario, Materials,Boundaries, Transducers[0], Inspection, Simulation)
+
+
+		if isChange:
+			self.Boundaries = Boundaries
+			self.Scenario = Scenario
+			self.message4 = "Found error, but fixed: All boundaries with Air Layers"
+
+
+		boundary_tree = QTreeWidgetItem(self.treeWidget)
+		boundary_tree.setText(0,"Boundaries Conditions")
+		boundary_tree.setIcon(0,QIcon(":/mark.png"))
+
+		if self.message4 is not None:
+			boundary_tree.setText(1,self.message4)
+
+		self.Inspection.setInspection(Scenario, Transducers[0], Simulation)
+
+
+		signal_tree = QTreeWidgetItem(self.treeWidget)
+		signal_tree.setText(0,"Signal Setup")
+		signal_tree.setIcon(0,QIcon(":/mark.png"))
+
+		t = Simulation.t
+		try:
+			source = Signal.generate(t)
+		except Exception as e:
+			self.message5 = "Signal does not fit in the Simulation Time, Increase the Simulation Time to solve this issue"
+			signal_tree.setText(1,self.message5)
+			signal_tree.setIcon(0,QIcon(":/cross.png"))
+
+		if self.message1 is  None and self.message2 is None \
+				and self.message3 is None and self.message4 is None\
+				and self.message5 is None:
+			self.passAll = True
+
+
+
+	def close(self):
+
+		if self.passAll:
+			QDialog.accept(self)
+		else:
+			QDialog.reject(self)