diff --git a/src/main/java/cz/cvut/fel/sit/omo/foodchain/node/INode.java b/src/main/java/cz/cvut/fel/sit/omo/foodchain/node/INode.java
index 7ef03d5..3600255 100644
--- a/src/main/java/cz/cvut/fel/sit/omo/foodchain/node/INode.java
+++ b/src/main/java/cz/cvut/fel/sit/omo/foodchain/node/INode.java
@@ -1,21 +1,26 @@
 package cz.cvut.fel.sit.omo.foodchain.node;
 
 import cz.cvut.fel.sit.omo.foodchain.channel.IChannel;
-import cz.cvut.fel.sit.omo.foodchain.operation.Action;
-import cz.cvut.fel.sit.omo.foodchain.operation.Transaction;
+import cz.cvut.fel.sit.omo.foodchain.operation.*;
 import cz.cvut.fel.sit.omo.foodchain.product.Product;
 import cz.cvut.fel.sit.omo.foodchain.product.ProductType;
 import cz.cvut.fel.sit.omo.foodchain.requirement.Requirement;
 import cz.cvut.fel.sit.omo.foodchain.signature.Signature;
 
-import java.awt.*;
+import java.util.List;
 
 public interface INode {
-    void sendTransaction(Product product, INode INode);
+    void sendTransaction(Product product, INode node);
 
-    void receiveTransaction(Transaction transaction);
+    void sendTransaction(MonetaryAmount amount, INode node);
 
-    void refuseTransaction(Transaction transaction);
+    void receiveTransaction(ProductTransaction transaction);
+
+    void receiveTransaction(FinancialTransaction transaction);
+
+    void refuseTransaction(ProductTransaction transaction);
+
+    void refuseTransaction(FinancialTransaction transaction);
 
     Transaction readNextTransaction(IChannel channel);
 
@@ -27,13 +32,13 @@ public interface INode {
 
     void unsubscribeFromChannel(IChannel channel);
 
-    void doAction(Action action, Product product);
+    void doAction(ProductOperationType action, Product product);
 
-    void doAction(Action action);
+    void doAction(ProductOperationType action);
 
     void storeProduct(Product product);
 
-    void storeProducts(List products);
+    void storeProducts(List<Product> products);
 
     Product getProductFromStorage(String name, ProductType type);
 
diff --git a/src/main/java/cz/cvut/fel/sit/omo/foodchain/node/NodeBase.java b/src/main/java/cz/cvut/fel/sit/omo/foodchain/node/NodeBase.java
index 2c6e46a..4fd7d30 100644
--- a/src/main/java/cz/cvut/fel/sit/omo/foodchain/node/NodeBase.java
+++ b/src/main/java/cz/cvut/fel/sit/omo/foodchain/node/NodeBase.java
@@ -1,39 +1,68 @@
 package cz.cvut.fel.sit.omo.foodchain.node;
 
 import cz.cvut.fel.sit.omo.foodchain.channel.IChannel;
-import cz.cvut.fel.sit.omo.foodchain.operation.Action;
-import cz.cvut.fel.sit.omo.foodchain.operation.Transaction;
+import cz.cvut.fel.sit.omo.foodchain.operation.*;
 import cz.cvut.fel.sit.omo.foodchain.product.Product;
 import cz.cvut.fel.sit.omo.foodchain.product.ProductType;
 import cz.cvut.fel.sit.omo.foodchain.requirement.Requirement;
 import cz.cvut.fel.sit.omo.foodchain.signature.Signature;
 
-import java.awt.*;
+import java.util.LinkedList;
+import java.util.List;
+
 
 public class NodeBase implements INode {
+    private final List<IChannel> subscribedChannels;
+    private final List<Product> products;
+
+    public NodeBase(){
+        subscribedChannels = new LinkedList<>();
+        products = new LinkedList<>();
+    }
+
     @Override
     public void sendTransaction(Product product, INode node) {
+        Transaction transaction = new ProductTransaction(product, node);
+
+        subscribedChannels.stream()
+                .filter(ch -> ch.getProductType().equals(product.getType()))
+                .findAny().ifPresent(channel -> channel.addTransaction(transaction));
+    }
+
+    @Override
+    public void sendTransaction(MonetaryAmount amount, INode node) {
 
     }
 
     @Override
-    public void receiveTransaction(Transaction transaction) {
+    public void receiveTransaction(ProductTransaction transaction) {
 
     }
 
     @Override
-    public void refuseTransaction(Transaction transaction) {
+    public void receiveTransaction(FinancialTransaction transaction) {
 
     }
 
+    @Override
+    public void refuseTransaction(ProductTransaction transaction) {
+
+    }
+
+    @Override
+    public void refuseTransaction(FinancialTransaction transaction) {
+
+    }
+
+
     @Override
     public Transaction readNextTransaction(IChannel channel) {
-        return null;
+        return channel.getNextTransaction();
     }
 
     @Override
     public Requirement readNextRequirement(IChannel channel) {
-        return null;
+        return channel.getNextRequirement();
     }
 
     @Override
@@ -43,31 +72,32 @@ public class NodeBase implements INode {
 
     @Override
     public void subscribeToChannel(IChannel channel) {
-
+        subscribedChannels.add(channel);
     }
 
     @Override
     public void unsubscribeFromChannel(IChannel channel) {
-
+        subscribedChannels.remove(channel);
     }
 
     @Override
-    public void doAction(Action action, Product product) {
-
+    public void doAction(ProductOperationType action, Product product) {
+        //create new action
     }
 
     @Override
-    public void doAction(Action action) {
-
+    public void doAction(ProductOperationType action) {
+        //create new action
     }
 
+
     @Override
     public void storeProduct(Product product) {
 
     }
 
     @Override
-    public void storeProducts(List products) {
+    public void storeProducts(List<Product> products) {
 
     }