diff --git a/models/Builder.model b/models/Builder.model
new file mode 100644
index 0000000..85fa2df
--- /dev/null
+++ b/models/Builder.model
@@ -0,0 +1,8 @@
+channel CIO{
+    out Builder(n1:Int, setName(n:Int)) == 1
+}
+
+channel Build{
+    in Builder(n2, build(n2:Int)) == 1
+    out Hero(h:Int, build(n2)) == 1
+}
\ No newline at end of file