diff --git a/src/fr/impl/CompatibilityManagerImpl.java b/src/fr/impl/CompatibilityManagerImpl.java
index b8b3754..30eedbf 100644
--- a/src/fr/impl/CompatibilityManagerImpl.java
+++ b/src/fr/impl/CompatibilityManagerImpl.java
@@ -201,6 +201,4 @@ public class CompatibilityManagerImpl implements CompatibilityManager {
         Femeture_Transivite(reference, result,new HashSet<>(),reference);
         return result;
     }
-
-
 }
\ No newline at end of file
diff --git a/src/fr/impl/ConfigurationImpl.java b/src/fr/impl/ConfigurationImpl.java
index f1c383f..d501ddb 100644
--- a/src/fr/impl/ConfigurationImpl.java
+++ b/src/fr/impl/ConfigurationImpl.java
@@ -17,39 +17,50 @@ public class ConfigurationImpl implements Configuration {
 
     @Override
     public boolean isValid() {
-        if (this.isComplete()){
-            for(Part pt: selectedParts){
-                //Verifier Requirements
-                for(PartType require : compatibilityManager.getRequirements(pt.getType())){
-                    //if(!selectedParts.contains(require)) return false;
-                    //IN V2, instead of verify if it's in selectedParts,
-                    //we will compare its type and selectedParts 
-                    //boolean no_error = true;
+        for(Part pt: selectedParts){
+            //Verifier Requirements
+            for(PartType require : compatibilityManager.getRequirements(pt.getType())){
+                //if(!selectedParts.contains(require)) return false;
+                //IN V2, instead of verify if it's in selectedParts,
+                //we will compare its type and selectedParts 
+                //boolean no_error = true;
 
-                    for(Part selectPart : selectedParts){
-                        if (selectPart.getType().equals(require)){
-                            return false;
-                            //no_error= true; 
-                            //break;
-                        }
-                    }   
-                }
-                //Verifier Incompabilities
-                for(PartType incompa : compatibilityManager.getIncompatibilities(pt.getType())){
-                    for (Part selectPart : selectedParts){
-                        if(selectPart.getType().equals(incompa)){
-                            return false;
-                        }
+                for(Part selectPart : selectedParts){
+                    if (selectPart.getType().equals(require)){
+                        return false;
+                        //no_error= true; 
+                        //break;
                     }
-                }                
+                }   
             }
-            return true;
+            //Verifier Incompabilities
+            for(PartType incompa : compatibilityManager.getIncompatibilities(pt.getType())){
+                for (Part selectPart : selectedParts){
+                    if(selectPart.getType().equals(incompa)){
+                        return false;
+                    }
+                }
+            }                
+        }
+        return true;
+    }
+    
+    public int getPriceTotal(){
+        int prix_final=0;
+        if(this.isValid()){
+            for(Part pt: selectedParts){
+                Optional<String> price_opt =pt.getProperty("prix");
+                if(price_opt.isPresent()){
+                    int prix_piece= Integer.parseInt(price_opt.get());
+                    prix_final += prix_piece;
+                }
+            }
+            return prix_final;
         }else{
-            return false;
+            return -1;
         }
     }
     
-
     @Override
     public boolean isComplete() {
         if(selectedParts.size()==NB_CATEGORY){