diff --git a/Additional_Notes/class_diagram.plantuml b/Additional_Notes/class_diagram.plantuml
index 19af2f3..d59c9f1 100644
--- a/Additional_Notes/class_diagram.plantuml
+++ b/Additional_Notes/class_diagram.plantuml
@@ -12,6 +12,9 @@ package API {
     class RecommenderAPI
     class ProductStructureAPI
 }
+"/config/" ()-- ConfigurationAPI
+"/recommender/" ()-- RecommenderAPI
+"/product_structure/" ()-- ProductStructureAPI
 
 package Manager {
     class RecommendationManager