diff --git a/Additional_Notes/class_diagram.plantuml b/Additional_Notes/class_diagram.plantuml
index a73ab1e..182db9e 100644
--- a/Additional_Notes/class_diagram.plantuml
+++ b/Additional_Notes/class_diagram.plantuml
@@ -7,7 +7,31 @@ skinparam class {
 }
 skinparam shadowing false
 
+package API {
+    class ConfigurationAPI
+    class RecommenderAPI
+    class ProductStructureAPI
+}
+
+package Manager {
+    class RecommendationManager
+}
+
+package Model{
+    class ConfigurationModel
+    class PreferenceModel
+    class ProductStructureModel
+}
+
+package DAO {
+    class ConfigurationDAO
+    class ProductStructureDAO
+}
+
 package Scoring {  
+    
+    
+
     package List {
         class ListFunction
         class ListToListFunction
@@ -98,6 +122,8 @@ package Scoring {
     }
 }
 
+RecommendationManager *-- ScoringFunction
+
 
 
 @enduml
\ No newline at end of file