diff --git a/avek-gui/src/main/java/fr/axonic/avek/gui/view/AbstractView.java b/avek-gui/src/main/java/fr/axonic/avek/gui/view/AbstractView.java
index 5cabc0d..6f45d33 100644
--- a/avek-gui/src/main/java/fr/axonic/avek/gui/view/AbstractView.java
+++ b/avek-gui/src/main/java/fr/axonic/avek/gui/view/AbstractView.java
@@ -1,11 +1,51 @@
 package fr.axonic.avek.gui.view;
 
+import javafx.fxml.FXMLLoader;
 import javafx.scene.layout.BorderPane;
+import org.apache.log4j.Logger;
+
+import java.io.IOException;
+import java.net.URL;
 
 /**
  * Created by Nathaël N on 26/07/16.
  */
 public abstract class AbstractView extends BorderPane {
+	private final static Logger logger = Logger.getLogger(AbstractView.class);
+
+	private boolean loaded;
+
+	public AbstractView() {
+		loaded = false;
+	}
+
+	public boolean isLoaded() {
+		return loaded;
+	}
+	public final void load() {
+		if(loaded)
+			return;
+
+		this.onLoad();
+	}
+	protected abstract void onLoad();
+	protected final void load(String path) {
+		if(loaded)
+			return;
+
+		URL fxml = AbstractView.class.getClassLoader()
+				.getResource(path);
+
+		FXMLLoader fxmlLoader = new FXMLLoader(fxml);
+		fxmlLoader.setController(this);
+		fxmlLoader.setRoot(this);
 
+		try {
+			fxmlLoader.load();
+			loaded = true;
+		} catch (IOException | RuntimeException e) {
+			logger.fatal("Impossible to load FXML", e);
+		}
+	}
 
 }
diff --git a/avek-gui/src/main/java/fr/axonic/avek/gui/view/EstablishEffectView.java b/avek-gui/src/main/java/fr/axonic/avek/gui/view/EstablishEffectView.java
index da511da..c56eacf 100644
--- a/avek-gui/src/main/java/fr/axonic/avek/gui/view/EstablishEffectView.java
+++ b/avek-gui/src/main/java/fr/axonic/avek/gui/view/EstablishEffectView.java
@@ -9,17 +9,12 @@
 import fr.axonic.avek.model.base.engine.AList;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
-import javafx.fxml.FXMLLoader;
 import javafx.scene.control.Button;
 import org.apache.log4j.Logger;
 
-import java.io.IOException;
-import java.net.URL;
-
 public class EstablishEffectView extends AbstractView {
 	private final static Logger logger = Logger.getLogger(EstablishEffectView.class);
-	private final static URL FXML
-			= EstablishEffectView.class.getClassLoader().getResource("fxml/views/GeneralizedView.fxml");
+	private final static String FXML = "fxml/views/EstablishEffectView.fxml";
 
 	@FXML
 	private Button btnStrategy;
@@ -30,19 +25,11 @@ public class EstablishEffectView extends AbstractView {
 	@FXML
 	private JellyBeansSelector jellyBeansSelector;
 
-	// Should be public
-	public EstablishEffectView() {
-		FXMLLoader fxmlLoader = new FXMLLoader(FXML);
-		fxmlLoader.setController(this);
-		fxmlLoader.setRoot(this);
-
-		logger.info("Loading EstablishEffectView... (fxml)");
-		try {
-			fxmlLoader.load();
-			logger.debug("EstablishEffectView loaded.");
-		} catch (IOException e) {
-			logger.fatal("Impossible to load FXML for EstablishEffectView", e);
-		}
+	@Override
+	protected void onLoad() {
+		logger.info("Loading TreatView...");
+		super.load(FXML);
+		logger.debug("TreatView loaded.");
 	}
 
 	@FXML
diff --git a/avek-gui/src/main/java/fr/axonic/avek/gui/view/GeneralizedView.java b/avek-gui/src/main/java/fr/axonic/avek/gui/view/GeneralizedView.java
index bf6c7e8..0d9155c 100644
--- a/avek-gui/src/main/java/fr/axonic/avek/gui/view/GeneralizedView.java
+++ b/avek-gui/src/main/java/fr/axonic/avek/gui/view/GeneralizedView.java
@@ -9,17 +9,12 @@
 import fr.axonic.avek.model.base.engine.AList;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
-import javafx.fxml.FXMLLoader;
 import javafx.scene.control.Button;
 import org.apache.log4j.Logger;
 
-import java.io.IOException;
-import java.net.URL;
-
 public class GeneralizedView extends AbstractView {
 	private final static Logger logger = Logger.getLogger(GeneralizedView.class);
-	private final static URL FXML
-			= GeneralizedView.class.getClassLoader().getResource("fxml/views/GeneralizedView.fxml");
+	private final static String FXML = "fxml/views/GeneralizedView.fxml";
 
 	@FXML
 	private Button btnStrategy;
@@ -30,19 +25,11 @@ public class GeneralizedView extends AbstractView {
 	@FXML
 	private JellyBeansSelector jellyBeansSelector;
 
-	// Should be public
-	public GeneralizedView() {
-		FXMLLoader fxmlLoader = new FXMLLoader(FXML);
-		fxmlLoader.setController(this);
-		fxmlLoader.setRoot(this);
-
-		logger.info("Loading GeneralizedView... (fxml)");
-		try {
-			fxmlLoader.load();
-			logger.debug("GeneralizedView loaded.");
-		} catch (IOException e) {
-			logger.fatal("Impossible to load FXML for GeneralizedView", e);
-		}
+	@Override
+	protected void onLoad() {
+		logger.info("Loading GeneralizedView...");
+		super.load(FXML);
+		logger.debug("GeneralizedView loaded.");
 	}
 
 	@FXML
diff --git a/avek-gui/src/main/java/fr/axonic/avek/gui/view/MainFrame.java b/avek-gui/src/main/java/fr/axonic/avek/gui/view/MainFrame.java
index 7714300..acdd1ce 100644
--- a/avek-gui/src/main/java/fr/axonic/avek/gui/view/MainFrame.java
+++ b/avek-gui/src/main/java/fr/axonic/avek/gui/view/MainFrame.java
@@ -43,13 +43,25 @@ public MainFrame() {
 
 	@FXML
 	private void onClicStrategyButton(ActionEvent event) {
+		AbstractView ancientview = view;
+		StrategySelectionView ssv = new StrategySelectionView();
+		setView(ssv);
 
+		ssv.setAvailableChoices(
+				ancientview instanceof TreatView?ancientview:new TreatView(),
+				ancientview instanceof EstablishEffectView?ancientview:new EstablishEffectView(),
+				ancientview instanceof GeneralizedView?ancientview:new GeneralizedView());
+		ssv.setOnCancel(ancientview);
+		ssv.onSetView(this::setView);
+
+		btnStrategy.setDisable(true);
 	}
 
 
 	public void setView(AbstractView view) {
 		setCenter(view); // remove abstract view currently loaded
 		this.view = view;
+		view.load();
+		btnStrategy.setDisable(false);
 	}
-
 }
diff --git a/avek-gui/src/main/java/fr/axonic/avek/gui/view/StrategySelectionView.java b/avek-gui/src/main/java/fr/axonic/avek/gui/view/StrategySelectionView.java
new file mode 100644
index 0000000..f554288
--- /dev/null
+++ b/avek-gui/src/main/java/fr/axonic/avek/gui/view/StrategySelectionView.java
@@ -0,0 +1,89 @@
+package fr.axonic.avek.gui.view;
+
+import fr.axonic.avek.gui.components.MonitoredSystemPane;
+import fr.axonic.avek.gui.components.parameters.GeneralizedParametersPane;
+import fr.axonic.avek.gui.components.results.JellyBeansSelector;
+import fr.axonic.avek.gui.model.json.Jsonifier;
+import fr.axonic.avek.gui.model.structure.ExpEffect;
+import fr.axonic.avek.model.MonitoredSystem;
+import fr.axonic.avek.model.base.engine.AEntity;
+import fr.axonic.avek.model.base.engine.AList;
+import javafx.collections.FXCollections;
+import javafx.event.ActionEvent;
+import javafx.fxml.FXML;
+import javafx.fxml.FXMLLoader;
+import javafx.scene.control.Button;
+import javafx.scene.control.ComboBox;
+import javafx.scene.control.ListCell;
+import javafx.scene.control.ListView;
+import javafx.util.Callback;
+import org.apache.log4j.Logger;
+
+import java.io.IOException;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.function.Consumer;
+
+public class StrategySelectionView extends AbstractView {
+	private final static Logger logger = Logger.getLogger(StrategySelectionView.class);
+	private final static String FXML = "fxml/views/StrategySelectionView.fxml";
+
+	@FXML
+	private Button submit;
+	@FXML
+	private Button cancel;
+	@FXML
+	private ComboBox<PointerOnView> comboBox;
+
+	private AbstractView onCancelView;
+	private Consumer<AbstractView> onSetViewMethod;
+
+	@Override
+	protected void onLoad() {
+		logger.info("Loading StrategySelectionView...");
+		super.load(FXML);
+		logger.debug("StrategySelectionView loaded.");
+	}
+
+	@FXML
+	void onSubmit(ActionEvent event) {
+		onSetView(comboBox.getValue().view);
+	}
+	@FXML
+	void onCancel(ActionEvent event) {
+		onSetView(onCancelView);
+	}
+
+	void setAvailableChoices(AbstractView... views) {
+		List<PointerOnView> lpov = new ArrayList<>();
+		for(AbstractView av : views)
+			lpov.add(new PointerOnView(av));
+
+		comboBox.setItems(FXCollections.observableArrayList(lpov));
+	}
+	void setOnCancel(AbstractView view) {
+		onCancelView = view;
+	}
+
+	private void onSetView(AbstractView view) {
+		onSetViewMethod.accept(view);
+	}
+	void onSetView(Consumer<AbstractView> onSetViewMethod) {
+		this.onSetViewMethod = onSetViewMethod;
+	}
+
+	private class PointerOnView {
+		final AbstractView view;
+
+		private PointerOnView(AbstractView view) {
+			this.view = view;
+		}
+
+		@Override
+		public String toString() {
+			return view.getClass().getSimpleName();
+		}
+	}
+}
+
diff --git a/avek-gui/src/main/java/fr/axonic/avek/gui/view/TreatView.java b/avek-gui/src/main/java/fr/axonic/avek/gui/view/TreatView.java
index e6dc620..dac91f3 100644
--- a/avek-gui/src/main/java/fr/axonic/avek/gui/view/TreatView.java
+++ b/avek-gui/src/main/java/fr/axonic/avek/gui/view/TreatView.java
@@ -8,17 +8,12 @@
 import fr.axonic.avek.model.base.engine.AList;
 import javafx.event.ActionEvent;
 import javafx.fxml.FXML;
-import javafx.fxml.FXMLLoader;
 import javafx.scene.control.Button;
 import org.apache.log4j.Logger;
 
-import java.io.IOException;
-import java.net.URL;
-
 public class TreatView extends AbstractView {
 	private final static Logger logger = Logger.getLogger(TreatView.class);
-	private final static URL FXML
-			= TreatView.class.getClassLoader().getResource("fxml/views/GeneralizedView.fxml");
+	private final static String FXML = "fxml/views/TreatView.fxml";
 
 	@FXML
 	private Button btnStrategy;
@@ -27,19 +22,11 @@ public class TreatView extends AbstractView {
 	@FXML
 	private MonitoredSystemPane monitoredSystemPane;
 
-	// Should be public
-	public TreatView() {
-		FXMLLoader fxmlLoader = new FXMLLoader(FXML);
-		fxmlLoader.setController(this);
-		fxmlLoader.setRoot(this);
-
-		logger.info("Loading TreatView... (fxml)");
-		try {
-			fxmlLoader.load();
-			logger.debug("TreatView loaded.");
-		} catch (IOException e) {
-			logger.fatal("Impossible to load FXML for TreatView", e);
-		}
+	@Override
+	protected void onLoad() {
+		logger.info("Loading TreatView...");
+		super.load(FXML);
+		logger.debug("TreatView loaded.");
 	}
 
 	@FXML
diff --git a/avek-gui/src/main/resources/fxml/views/EtablishEffectView.fxml b/avek-gui/src/main/resources/fxml/views/EstablishEffectView.fxml
similarity index 100%
rename from avek-gui/src/main/resources/fxml/views/EtablishEffectView.fxml
rename to avek-gui/src/main/resources/fxml/views/EstablishEffectView.fxml
diff --git a/avek-gui/src/main/resources/fxml/views/StrategySelectionView.fxml b/avek-gui/src/main/resources/fxml/views/StrategySelectionView.fxml
new file mode 100644
index 0000000..6e22803
--- /dev/null
+++ b/avek-gui/src/main/resources/fxml/views/StrategySelectionView.fxml
@@ -0,0 +1,21 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.scene.layout.BorderPane?>
+<?import javafx.scene.control.Label?>
+<?import javafx.scene.control.ComboBox?>
+<?import javafx.scene.control.Button?>
+<?import javafx.scene.layout.VBox?>
+<?import javafx.scene.layout.HBox?>
+<fx:root xmlns:fx="http://javafx.com/fxml"
+         type="javafx.scene.layout.BorderPane">
+    <center>
+        <VBox>
+            <Label>Select a Strategy</Label>
+            <ComboBox fx:id="comboBox"/>
+            <HBox>
+                <Button fx:id="cancel" onAction="#onCancel">Cancel</Button>
+                <Button fx:id="submit" onAction="#onSubmit">Submit</Button>
+            </HBox>
+        </VBox>
+    </center>
+</fx:root>