diff --git a/xos/onboard/exampleservice/exampleservice-onboard.yaml b/xos/onboard/exampleservice/exampleservice-onboard.yaml
index 0095e44..25f2a31 100644
--- a/xos/onboard/exampleservice/exampleservice-onboard.yaml
+++ b/xos/onboard/exampleservice/exampleservice-onboard.yaml
@@ -9,22 +9,38 @@
   node_templates:
     exampleservice:
       type: tosca.nodes.ServiceController
-      base_url: file:/opt/xos/onboard/exampleservice/
+      properties:
+          base_url: file:/opt/xos/onboard/exampleservice/
 
     exampleservice_models:
       type: tosca.nodes.ServiceControllerResource
-      kind: models
-      format: python
-      url: models.py
+      properties:
+          kind: models
+          format: python
+          url: models.py
+      requirements:
+          - controller:
+              node: exampleservice
+              relationship: tosca.relationships.UsedByController
 
     exampleservice_admin:
       type: tosca.nodes.ServiceControllerResource
-      kind: admin
-      format: python
-      url: admin.py
+      properties:
+          kind: admin
+          format: python
+          url: admin.py
+      requirements:
+          - controller:
+              node: exampleservice
+              relationship: tosca.relationships.UsedByController
 
     exampleservice_synchronizer:
       type: tosca.nodes.ServiceControllerResource
-      kind: synchronizer
-      format: manifest
-      url: synchronizer/manifest
+      properties:
+          kind: synchronizer
+          format: manifest
+          url: synchronizer/manifest
+      requirements:
+          - controller:
+              node: exampleservice
+              relationship: tosca.relationships.UsedByController