diff --git a/src/main/java/com/example/comerce/core/entities/Address.java b/src/main/java/com/example/comerce/core/entities/Address.java
new file mode 100644
index 0000000..d5bd513
--- /dev/null
+++ b/src/main/java/com/example/comerce/core/entities/Address.java
@@ -0,0 +1,50 @@
+package com.example.comerce.core.entities;
+
+import jakarta.persistence.*;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.UUID;
+
+@Entity
+@Table(name = "address")
+@Getter
+@Setter
+public class Address {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "address_id", nullable = false, unique = true, updatable = false, length = 36)
+    @NotNull(message = "Address ID não pode ser null")
+    private UUID address_id;
+
+    @Column(nullable = false)
+    @NotBlank(message = "CEP não pode estar em branco")
+    private String postal_code;
+
+    @Column(nullable = false)
+    @NotBlank(message = "Rua não pode estar em branco")
+    private String street;
+
+    @Column(nullable = false)
+    @NotBlank(message = "Número não pode estar em branco")
+    private String number;
+
+    @Column(nullable = false)
+    @NotBlank(message = "Bairro não pode estar em branco")
+    private String complement;
+
+    @Column(nullable = false)
+    @NotBlank(message = "Bairro não pode estar em branco")
+    private String neighborhood;
+
+    @Column(nullable = false)
+    @NotBlank(message = "Cidade não pode estar em branco")
+    private String city;
+
+    @Column(nullable = false)
+    @NotBlank(message = "Estado não pode estar em branco")
+    private String state;
+}
diff --git a/src/main/java/com/example/comerce/core/entities/Category.java b/src/main/java/com/example/comerce/core/entities/Category.java
new file mode 100644
index 0000000..d6dcd7d
--- /dev/null
+++ b/src/main/java/com/example/comerce/core/entities/Category.java
@@ -0,0 +1,27 @@
+package com.example.comerce.core.entities;
+
+import jakarta.persistence.*;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
+import lombok.Getter;
+import lombok.Setter;
+import lombok.Singular;
+
+import java.util.UUID;
+
+@Entity
+@Table(name = "category")
+@Getter
+@Setter
+public class Category {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "category_id", nullable = false, unique = true, updatable = false, length = 36)
+    @NotNull(message = "Category ID não pode ser null")
+    private UUID category_id;
+
+    @Column
+    @Size(min = 10, max = 255, message = "A descrição da categoria deve ter entre 10 e 255 caracteres")
+    private String description;
+}
diff --git a/src/main/java/com/example/comerce/core/entities/Order.java b/src/main/java/com/example/comerce/core/entities/Order.java
new file mode 100644
index 0000000..13dbebf
--- /dev/null
+++ b/src/main/java/com/example/comerce/core/entities/Order.java
@@ -0,0 +1,36 @@
+package com.example.comerce.core.entities;
+
+import jakarta.persistence.*;
+import jakarta.validation.constraints.FutureOrPresent;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Positive;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.Date;
+import java.util.UUID;
+
+@Entity
+@Table(name = "orders")
+@Getter
+@Setter
+public class Order {
+    @Id
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "order_id", nullable = false, unique = true, updatable = false, length = 36)
+    @NotNull(message = "Order ID não pode ser null")
+    private UUID order_id;
+
+    @Column(nullable = false)
+    @NotNull(message = "Data do pedido não pode ser null")
+    @FutureOrPresent(message = "Data do pedido deve ser no presente ou no futuro")
+    private Date date;
+
+    @Column
+    @Positive(message = "O desconto deve ser um valor positivo")
+    private double discount;
+
+    @Column(nullable = false)
+    @Positive(message = "O valor total deve ser um valor positivo")
+    private double total_price;
+}
diff --git a/src/main/java/com/example/comerce/core/entities/ProductCategoryId.java b/src/main/java/com/example/comerce/core/entities/ProductCategoryId.java
new file mode 100644
index 0000000..479c68a
--- /dev/null
+++ b/src/main/java/com/example/comerce/core/entities/ProductCategoryId.java
@@ -0,0 +1,21 @@
+package com.example.comerce.core.entities;
+
+import jakarta.persistence.Column;
+import jakarta.persistence.Embeddable;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.util.UUID;
+
+@Embeddable
+@Getter
+@Setter
+@EqualsAndHashCode
+public class ProductCategoryId {
+    @Column(insertable = false, updatable = false)
+    private UUID product_id;
+
+    @Column(insertable = false, updatable = false)
+    private UUID category_id;
+}
diff --git a/src/main/java/com/example/comerce/core/entities/User.java b/src/main/java/com/example/comerce/core/entities/User.java
index fda010c..647e49f 100644
--- a/src/main/java/com/example/comerce/core/entities/User.java
+++ b/src/main/java/com/example/comerce/core/entities/User.java
@@ -1,17 +1,45 @@
 package com.example.comerce.core.entities;
 
-import jakarta.persistence.Entity;
-import jakarta.persistence.Id;
+import jakarta.persistence.*;
+import jakarta.validation.constraints.Email;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import jakarta.validation.constraints.Size;
 import lombok.Getter;
 import lombok.Setter;
 
 import java.util.UUID;
 
 @Entity
+@Table(name = "users")
 @Getter
 @Setter
 public class User {
 
     @Id
-    private UUID id;
-}
\ No newline at end of file
+    @GeneratedValue(strategy = GenerationType.AUTO)
+    @Column(name = "user_id", nullable = false, unique = true, updatable = false, length = 36)
+    @NotNull(message = "User ID não pode ser null")
+    private UUID user_id;
+
+    @Column(length = 100, nullable = false)
+    @NotBlank(message = "Nome não pode estar em branco")
+    @Size(min = 3, max = 100, message = "Nome deve ter no mínimo 3 caracteres e no máximo 100 caracteres")
+    private String name;
+
+    @Column(length = 11, nullable = false, unique = true)
+    @Size(min = 11, max = 11, message = "Telefone deve ter 11 caracteres")
+    private String telephone;
+
+    @Column(length = 11, nullable = false, unique = true)
+    @Size(min = 11, max = 11, message = "CPF deve ter 11 caracteres")
+    private String cpf;
+
+    @Column(length = 100, nullable = false, unique = true)
+    @NotBlank(message = "Email não pode estar em branco")
+    @Email(message = "E-mail inválido")
+    private String email;
+
+    @Column(length = 255, nullable = false)
+    private Address address;
+}