diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/History.java b/AlgebraicDataflowArchitectureModel/src/experiment/History.java
deleted file mode 100644
index 57a6f54..0000000
--- a/AlgebraicDataflowArchitectureModel/src/experiment/History.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package experiment;
-
-public class History {
-
-}
diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/Main.java b/AlgebraicDataflowArchitectureModel/src/experiment/Main.java
deleted file mode 100644
index 7ab98cd..0000000
--- a/AlgebraicDataflowArchitectureModel/src/experiment/Main.java
+++ /dev/null
@@ -1,10 +0,0 @@
-package experiment;
-
-public class Main {
-
-	public static void main(String[] args) {
-		// TODO Auto-generated method stub
-
-	}
-
-}
diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/Payment.java b/AlgebraicDataflowArchitectureModel/src/experiment/Payment.java
deleted file mode 100644
index 6657a9a..0000000
--- a/AlgebraicDataflowArchitectureModel/src/experiment/Payment.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package experiment;
-
-public class Payment {
-
-}
diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/Points.java b/AlgebraicDataflowArchitectureModel/src/experiment/Points.java
deleted file mode 100644
index 7a5c1a5..0000000
--- a/AlgebraicDataflowArchitectureModel/src/experiment/Points.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package experiment;
-
-public class Points {
-
-}
diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/Total.java b/AlgebraicDataflowArchitectureModel/src/experiment/Total.java
deleted file mode 100644
index 1a87bfe..0000000
--- a/AlgebraicDataflowArchitectureModel/src/experiment/Total.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package experiment;
-
-public class Total {
-
-}
diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/pull/History.java b/AlgebraicDataflowArchitectureModel/src/experiment/pull/History.java
new file mode 100644
index 0000000..81dce56
--- /dev/null
+++ b/AlgebraicDataflowArchitectureModel/src/experiment/pull/History.java
@@ -0,0 +1,13 @@
+package experiment.pull;
+
+import java.util.ArrayList;
+
+public class History {
+	private ArrayList<Integer> history = new ArrayList<Integer>();
+	public void updatePayment(int payment) {
+		history.add(payment);
+	}
+	public ArrayList<Integer> getHistory() {
+		return history;
+	}
+}
diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/pull/Main.java b/AlgebraicDataflowArchitectureModel/src/experiment/pull/Main.java
new file mode 100644
index 0000000..5aa2c3f
--- /dev/null
+++ b/AlgebraicDataflowArchitectureModel/src/experiment/pull/Main.java
@@ -0,0 +1,25 @@
+package experiment.pull;
+
+import java.util.ArrayList;
+
+public class Main {
+	private History history = new History();
+	private Total total = new Total(history);
+	private Payment payment = new Payment(history);
+	private Points points = new Points(payment);
+	public void purchase(int payment) {
+		this.payment.purchase(payment);
+	}
+	public int getTotal() {
+		return total.getTotal();
+	}
+	public int getPayment() {
+		return payment.getPayment();
+	}
+	public ArrayList<Integer> getHistory() {
+		return history.getHistory();
+	}
+	public int getPoints() {
+		return points.getPoints();
+	}
+}
diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/pull/Payment.java b/AlgebraicDataflowArchitectureModel/src/experiment/pull/Payment.java
new file mode 100644
index 0000000..2cf25c0
--- /dev/null
+++ b/AlgebraicDataflowArchitectureModel/src/experiment/pull/Payment.java
@@ -0,0 +1,15 @@
+package experiment.pull;
+
+public class Payment {
+	private History history;
+	public Payment(History history) {
+		this.history = history;
+	}
+	public void purchase(int payment) {
+		this.payment = payment;
+		history.updatePayment(payment);
+	}
+	public int getPayment() {
+		return payment;
+	}
+}
diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/pull/Points.java b/AlgebraicDataflowArchitectureModel/src/experiment/pull/Points.java
new file mode 100644
index 0000000..2eaaf56
--- /dev/null
+++ b/AlgebraicDataflowArchitectureModel/src/experiment/pull/Points.java
@@ -0,0 +1,11 @@
+package experiment.pull;
+
+public class Points {
+	private Payment payment;
+	public Points(Payment payment) {
+		this.payment = payment;
+	}
+	public int getPoints() {
+		return (int)Math.floor((payment.getPayment()*0.05));
+	}
+}
diff --git a/AlgebraicDataflowArchitectureModel/src/experiment/pull/Total.java b/AlgebraicDataflowArchitectureModel/src/experiment/pull/Total.java
new file mode 100644
index 0000000..384af94
--- /dev/null
+++ b/AlgebraicDataflowArchitectureModel/src/experiment/pull/Total.java
@@ -0,0 +1,11 @@
+package experiment.pull;
+
+public class Total {
+	private History history;
+	public Total(History history) {
+		this.history = history;
+	}
+	public int getTotal() {
+		return history.getHistory().stream().mapToInt(x->x).sum();
+	}
+}