diff --git a/included_part.iuml b/included_part.iuml
new file mode 100644
index 0000000000000000000000000000000000000000..1898eabeb7e3c69127e0c76e5e5d396760b2cc2c
--- /dev/null
+++ b/included_part.iuml
@@ -0,0 +1,8 @@
+@startuml
+
+interface List
+List : int size()
+List : void clear()
+List <|.. ArrayList
+@enduml
+