diff --git a/pylot/core/util/structure.py b/pylot/core/util/structure.py
new file mode 100644
index 00000000..36e35b60
--- /dev/null
+++ b/pylot/core/util/structure.py
@@ -0,0 +1,11 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+"""
+Created on Wed Jan 26 17:47:25 2015
+
+@author: sebastianw
+"""
+
+from pylot.core.read import SeiscompDataStructure, PilotDataStructure
+
+DATASTRUCTURE = {'PILOT':PilotDataStructure, 'SeisComP':SeiscompDataStructure}