diff --git a/xos/hpc_observer/model-deps b/xos/hpc_observer/model-deps
new file mode 100644
index 0000000..63188f0
--- /dev/null
+++ b/xos/hpc_observer/model-deps
@@ -0,0 +1,19 @@
+{
+    "OriginServer": [
+        "ContentProvider"
+    ], 
+    "ContentProvider": [
+        "ServiceProvider"
+    ], 
+    "CDNPrefix": [
+        "ContentProvider"
+    ], 
+    "AccessMap": [
+        "ContentProvider"
+    ], 
+    "SiteMap": [
+        "ContentProvider", 
+        "ServiceProvider", 
+        "CDNPrefix"
+    ]
+}