diff --git a/SDS.md b/SDS.md
index 9366bf8..77bd76a 100644
--- a/SDS.md
+++ b/SDS.md
@@ -24,7 +24,12 @@
 
 4.**Sequence Diagram**
  **Send Class message**
-![Class Message](http://tinypic.com/view.php?pic=maiaue&s=8)
+ 
+ 
+ //TODO
+https://drive.google.com/file/d/0BznFG6PLZQZPRDE2MTNnZlR3M3M/view?usp=sharing
+ // TODO: fix img
+
 1. The lecturer must login with valid account.
 2. Once in lecturer dashboard, press messaging system button.
 3. Choose message type - private/group/class. (in this case Class)