diff --git a/docs/node-documentation/nodeClass.md b/docs/node-documentation/nodeClass.md
index fb9b4ed..02723d4 100644
--- a/docs/node-documentation/nodeClass.md
+++ b/docs/node-documentation/nodeClass.md
@@ -2,6 +2,16 @@
 
 ### Why use classes
 
+
+
+### Abstraction
+
+### Encaptiolation
+
+### Inheritance
+
+### Polymorphism
+
 ## Whitch classes did we use
 
 ### Uml diagram