diff --git a/AlgebraicDataflowArchitectureModel/src/algorithm/DataStorageDecision.java b/AlgebraicDataflowArchitectureModel/src/algorithm/DataStorageDecision.java
index f6a2e41..b6576d6 100644
--- a/AlgebraicDataflowArchitectureModel/src/algorithm/DataStorageDecision.java
+++ b/AlgebraicDataflowArchitectureModel/src/algorithm/DataStorageDecision.java
@@ -1,16 +1,30 @@
 package algorithm;
 
+import java.util.HashSet;
+
 import models.*;
 import models.dataFlowModel.*;
 
 public class DataStorageDecision {
+	static private HashSet<Node> arrivedNode = new HashSet<>();
+
 	static public void run(ResourceDependencyGraph graph) {
-		for(Edge e:graph.getEdges()) {
-			if(((PushPullAttribute) (((ResourceDependency)e).getAttribute())).getOptions().get(0) == PushPullValue.PUSH) {
-				
-			}else {
-				
+		for (Node n : graph.getNodes()) {
+			ResourceNode resource = (ResourceNode) n;
+			trackNode(resource);
+		}
+	}
+
+	static private void trackNode(ResourceNode resource) {
+		if(arrivedNode.contains(resource)) return;
+		arrivedNode.add(resource);
+		boolean flag = false;
+		for (Edge e : resource.getInEdges()) {
+			if (((PushPullAttribute) e.getAttribute()).getOptions().get(0) == PushPullValue.PUSH) {
+				trackNode((ResourceNode) e.getSource());
+				flag = true;
 			}
 		}
+		((StoreAttribute) resource.getAttribute()).setStored(flag);
 	}
 }