diff --git a/models/DTRAM/InventoryManagement.dtram b/models/DTRAM/InventoryManagement.dtram
deleted file mode 100644
index 6b453b3..0000000
--- a/models/DTRAM/InventoryManagement.dtram
+++ /dev/null
@@ -1,10 +0,0 @@
-channel ItemRegistration {
-	out inventory(itemDB:Map, registerItem(itemId:Str, itemName:Str, quantity:Int)) = insert(itemDB, itemId, {"count": quantity,
-																											"name": itemName})
-}
-
-channel ReceivingOrShipping(itemId:Str) {
-	out inventory.{itemId}.count(prev_quantity:Int, receiveOrShip(quantity:Int)) = if(prev_quantity + quantity >= 0,
-																						prev_quantity + quantity,
-																						prev_quantity)
-}
diff --git a/models/DTRAM/SimpleTwitter.dtram b/models/DTRAM/SimpleTwitter.dtram
deleted file mode 100644
index 0ad6a0d..0000000
--- a/models/DTRAM/SimpleTwitter.dtram
+++ /dev/null
@@ -1,8 +0,0 @@
-channel Signup{
-	out accounts(accountDB:Map, signUp(accountId:Str, name:Str)) = insert(accountDB, accountId, {"name": name, 
-																									"tweets": nil})
-}
-
-channel Tweet(accountId:Str) {
-	out accounts.{accountId}.tweets(tweetList:List, tweet(contents:Str)) = append(tweetList, contents)
-}
\ No newline at end of file