modified: overview.md

src/docs/overview.md

@@ -27,8 +27,6 @@ which is used to generate C++ library.
 
 ![data model use](data_model_use2.png)
 
-![data model layer](data_model_layers.png)
-
 
 ## NPDet - Nuclear physics detector library
 
@@ -37,3 +35,13 @@ NPDet is a collection of _generic detectors_ and _concept detectors_.
 
 In a hack-a-thon we will add to this detector library.
 
+
+## Reconstruction and Tracking Tools
+
+The goal of having a robust detector library and data model is to aid in the use and development of new tools, techniques, and algorithms.
+
+Many external tools exist that can be applied along the path to the ultimate physics analysis.
+
+
+
+