diff --git a/src/app/service-graph/interfaces.ts b/src/app/service-graph/interfaces.ts
index 4120bdb..a7e41f1 100644
--- a/src/app/service-graph/interfaces.ts
+++ b/src/app/service-graph/interfaces.ts
@@ -41,15 +41,23 @@
 
 export interface IXosCoarseGraphData {
   services: IXosServiceModel[];
-  servicedependencys: any[];
+  servicedependencies: any[];
 }
 
+// TODO outdated, remove
 export interface IXosFineGrainedGraphData extends IXosCoarseGraphData {
   tenants: IXosTenantModel[];
   subscribers: any[];
   networks: any[];
 }
 
+export interface IXosServiceInstanceGraphData {
+  serviceGraph: IXosServiceGraph;
+  serviceInstances: any[];
+  serviceInstanceLinks: any[];
+  networks: any[];
+}
+
 export interface IXosServiceGraphNodeBadge {
   type: 'info'|'success'|'warning'|'danger';
   text: string;