diff --git a/src/main/java/dev/model/MenuItem.java b/src/main/java/dev/model/MenuItem.java
new file mode 100644
index 0000000..265ecc1
--- /dev/null
+++ b/src/main/java/dev/model/MenuItem.java
@@ -0,0 +1,15 @@
+package dev.model;
+
+public class MenuItem {
+
+    private int id;
+
+    private String name;
+
+    private String description;
+
+    private double price;
+
+    private String category;
+
+}
\ No newline at end of file
diff --git a/src/main/java/dev/model/Order.java b/src/main/java/dev/model/Order.java
new file mode 100644
index 0000000..32049cb
--- /dev/null
+++ b/src/main/java/dev/model/Order.java
@@ -0,0 +1,15 @@
+package dev.model;
+
+import java.time.LocalDateTime;
+
+public class Order {
+
+    private int id;
+
+    private int userId;
+
+    private LocalDateTime createdAt;
+
+    private double totalPrice;
+
+}
\ No newline at end of file
diff --git a/src/main/java/dev/model/OrderDetail.java b/src/main/java/dev/model/OrderDetail.java
new file mode 100644
index 0000000..b5b8bbe
--- /dev/null
+++ b/src/main/java/dev/model/OrderDetail.java
@@ -0,0 +1,15 @@
+package dev.model;
+
+public class OrderDetail {
+
+    private int id;
+
+    private int orderId;
+
+    private int menuItemId;
+
+    private int quantity;
+
+    private double price;
+
+}
\ No newline at end of file
diff --git a/src/main/java/dev/model/User.java b/src/main/java/dev/model/User.java
new file mode 100644
index 0000000..0ab60c6
--- /dev/null
+++ b/src/main/java/dev/model/User.java
@@ -0,0 +1,13 @@
+package dev.model;
+
+public class User {
+
+    private int id;
+
+    private String username;
+
+    private String password;
+
+    private String email;
+
+}
\ No newline at end of file