diff --git a/src/main/java/org/gcube/portlets/user/td/informationwidget/client/TabularResourceProperties.java b/src/main/java/org/gcube/portlets/user/td/informationwidget/client/TabularResourceProperties.java
index 7792c5c..bba8fd5 100644
--- a/src/main/java/org/gcube/portlets/user/td/informationwidget/client/TabularResourceProperties.java
+++ b/src/main/java/org/gcube/portlets/user/td/informationwidget/client/TabularResourceProperties.java
@@ -8,6 +8,8 @@ import org.gcube.portlets.user.td.gwtservice.shared.tr.TableData;
 import org.gcube.portlets.user.td.informationwidget.client.util.InfoMessageBox;
 import org.gcube.portlets.user.td.metadatawidget.client.TRMetadataAccordionPanel;
 import org.gcube.portlets.user.td.metadatawidget.client.TableMetadataAccordionPanel;
+import org.gcube.portlets.user.td.widgetcommonevent.client.event.WidgetRequestEvent;
+import org.gcube.portlets.user.td.widgetcommonevent.client.type.WidgetRequestType;
 import org.gcube.portlets.user.td.widgetcommonevent.shared.TRId;
 
 import com.allen_sauer.gwt.log.client.Log;
@@ -34,7 +36,8 @@ public class TabularResourceProperties extends FramedPanel {
 	protected HashMap<String, String> tabularResourcePropertiesMap;
 	protected VerticalLayoutContainer vl;
 	protected EventBus eventBus;
-
+	protected TRId trId;
+	
 	protected FieldSet trFieldSet;
 	protected FieldSet tableFieldSet;
 
@@ -45,7 +48,7 @@ public class TabularResourceProperties extends FramedPanel {
 	protected TextField dateField;
 	protected TextArea rightField;
 	protected TextField typeField;
-	
+
 	protected TRMetadataAccordionPanel trMetadataPanel;
 	protected VerticalLayoutContainer layoutTabularResource;
 
@@ -53,13 +56,15 @@ public class TabularResourceProperties extends FramedPanel {
 	protected TableMetadataAccordionPanel tableMetadataPanel;
 	protected VerticalLayoutContainer layoutTable;
 	protected TextButton saveButton;
+	protected TextButton validationsButton;
+	
 
 	public TabularResourceProperties(String name, EventBus eventBus) {
 		super();
 		setId(name);
 		this.eventBus = eventBus;
 		forceLayoutOnResize = true;
-		
+
 		vl = new VerticalLayoutContainer();
 		vl.setScrollMode(ScrollMode.AUTO);
 		vl.setAdjustForScroll(true);
@@ -79,19 +84,19 @@ public class TabularResourceProperties extends FramedPanel {
 		trFieldSet.add(layoutTabularResource);
 
 		nameField = new TextField();
-		//nameField.setReadOnly(true);
+		// nameField.setReadOnly(true);
 		nameField.setValue("");
 		layoutTabularResource.add(new FieldLabel(nameField, "Name"),
 				new VerticalLayoutData(1, -1));
 
 		descriptionField = new TextArea();
-		//descriptionField.setReadOnly(true);
+		// descriptionField.setReadOnly(true);
 		descriptionField.setValue("");
 		layoutTabularResource.add(new FieldLabel(descriptionField,
 				"Description"), new VerticalLayoutData(1, -1));
 
 		agencyField = new TextField();
-		//agencyField.setReadOnly(true);
+		// agencyField.setReadOnly(true);
 		agencyField.setValue("");
 		layoutTabularResource.add(new FieldLabel(agencyField, "Agency"),
 				new VerticalLayoutData(1, -1));
@@ -101,7 +106,7 @@ public class TabularResourceProperties extends FramedPanel {
 		dateField.setValue("");
 		layoutTabularResource.add(new FieldLabel(dateField, "Date"),
 				new VerticalLayoutData(1, -1));
-		
+
 		typeField = new TextField();
 		typeField.setReadOnly(true);
 		typeField.setValue("");
@@ -109,12 +114,11 @@ public class TabularResourceProperties extends FramedPanel {
 				new VerticalLayoutData(1, -1));
 
 		rightField = new TextArea();
-		//rightField.setReadOnly(true);
+		// rightField.setReadOnly(true);
 		rightField.setValue("");
 		layoutTabularResource.add(new FieldLabel(rightField, "Rights"),
 				new VerticalLayoutData(1, -1));
-		
-		
+
 		// Save Button
 		saveButton = new TextButton("Save");
 		SelectHandler saveHandler = new SelectHandler() {
@@ -125,15 +129,15 @@ public class TabularResourceProperties extends FramedPanel {
 			}
 		};
 		saveButton.addSelectHandler(saveHandler);
-		layoutTabularResource.add(saveButton,
-				new VerticalLayoutData(-1, -1,new Margins(2)));
-		
+		layoutTabularResource.add(saveButton, new VerticalLayoutData(-1, -1,
+				new Margins(2)));
+
 		vl.add(trFieldSet);
 
 	}
 
 	protected void updateTabularResource(TabResource tabResource) {
-		this.tabResource=tabResource;
+		this.tabResource = tabResource;
 		Log.debug(tabResource.toString());
 		nameField.setValue(tabResource.getName());
 		descriptionField.setValue(tabResource.getDescription());
@@ -141,7 +145,7 @@ public class TabularResourceProperties extends FramedPanel {
 		dateField.setValue(tabResource.getDate());
 		typeField.setValue(tabResource.getTrId().getTabularResourceType());
 		rightField.setValue(tabResource.getRight());
-		
+
 	}
 
 	public void addTable() {
@@ -160,16 +164,41 @@ public class TabularResourceProperties extends FramedPanel {
 		layoutTable.add(new FieldLabel(tableTypeNameField, "Type"),
 				new VerticalLayoutData(1, -1));
 
+		// Validation Button
+		validationsButton = new TextButton("Validations");
+		SelectHandler validationsHandler = new SelectHandler() {
+
+			public void onSelect(SelectEvent event) {
+				openValidations();
+
+			}
+		};
+		validationsButton.addSelectHandler(validationsHandler);
+		layoutTable.add(validationsButton, new VerticalLayoutData(-1, -1,
+				new Margins(2)));
+
 		vl.add(tableFieldSet);
 	}
 
+	protected void openValidations() {
+		Log.debug("Request Validations Tab");
+		if (trId != null) {
+			WidgetRequestEvent e = new WidgetRequestEvent(
+					WidgetRequestType.VALIDATIONSTABLEPANEL);
+			e.setTrId(trId);
+			eventBus.fireEvent(e);
+		} else {
+			Log.error("TRId is null");
+		}
+	}
+
 	protected void updateTable(TableData tableData) {
 		tableTypeNameField.setValue(tableData.getTypeName());
 		if (tableMetadataPanel != null) {
 			tableFieldSet.remove(layoutTable);
 			layoutTable.remove(tableMetadataPanel);
 		}
-		TRId trId = tableData.getTrId();
+		trId = tableData.getTrId();
 
 		tableMetadataPanel = new TableMetadataAccordionPanel(
 				"TableInformation", trId, eventBus);
@@ -240,31 +269,29 @@ public class TabularResourceProperties extends FramedPanel {
 		addTable();
 		update();
 	}
-	
-	
-	protected void onSave(){
-		if(nameField.getValue()==null || nameField.getValue().isEmpty() ){
-			alert("Attention","Fill name field");
+
+	protected void onSave() {
+		if (nameField.getValue() == null || nameField.getValue().isEmpty()) {
+			alert("Attention", "Fill name field");
 			return;
-		} 
-		
-		if(descriptionField.getValue()==null || descriptionField.getValue().isEmpty() ){
-			alert("Attention","Fill description field");
+		}
+
+		if (descriptionField.getValue() == null
+				|| descriptionField.getValue().isEmpty()) {
+			alert("Attention", "Fill description field");
 			return;
-		} 
-		
-		if(rightField.getValue()==null || rightField.getValue().isEmpty() ){
-			alert("Attention","Fill rights field");
+		}
+
+		if (rightField.getValue() == null || rightField.getValue().isEmpty()) {
+			alert("Attention", "Fill rights field");
 			return;
-		} 
-		
+		}
+
 		tabResource.setName(nameField.getValue());
 		tabResource.setDescription(descriptionField.getValue());
 		tabResource.setAgency(agencyField.getValue());
 		tabResource.setRight(rightField.getValue());
-		
-		
-	
+
 		TDGWTServiceAsync.INSTANCE.setTabResourceInformation(tabResource,
 				new AsyncCallback<Void>() {
 
@@ -285,7 +312,7 @@ public class TabularResourceProperties extends FramedPanel {
 					}
 
 				});
-		 
+
 	}
 
 	private void alert(String title, String message) {