diff --git a/design_doc/planning_doc.md b/design_doc/planning_doc.md
index 16d1bd4..6af1717 100644
--- a/design_doc/planning_doc.md
+++ b/design_doc/planning_doc.md
@@ -1,5 +1,11 @@
 # TODOs 
 
+### Small Steps 
+1. load from existing RT-X dataset 
+2. storage implementation
+3. data conversion 
+
+### Big Steps 
 1. asynchonous writing, test with multiple processes & episodes 
 2. querying language and pulling optimization
 3. time sync join policy