diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/push/History.java b/AlgebraicDataflowArchitectureModel/src/experiment/push/History.java
new file mode 100644
index 0000000..0270b05
--- /dev/null
+++ b/AlgebraicDataflowArchitectureModel/src/experiment/push/History.java
@@ -0,0 +1,18 @@
+package experiment.push;
+
+import java.util.ArrayList;
+
+public class History {
+	private Total total;
+	private ArrayList<Integer> history = new ArrayList<Integer>();
+	public void updatePayment(int payment) {
+		history.add(payment);
+		total.update(history);
+	}
+	public History(Total total) {
+		this.total = total;
+	}
+	public ArrayList<Integer> getHistory() {
+		return history;
+	}
+}