diff --git a/src/main/java/com/pi/ati/ort/back/classes/RegisterRequest.java b/src/main/java/com/pi/ati/ort/back/classes/RegisterRequest.java
index 61c3c67..f87ea28 100644
--- a/src/main/java/com/pi/ati/ort/back/classes/RegisterRequest.java
+++ b/src/main/java/com/pi/ati/ort/back/classes/RegisterRequest.java
@@ -4,14 +4,16 @@ public class RegisterRequest {
     private String name;
     private String username;
     private String password;
+    private String role;
 
     public RegisterRequest() {
     }
 
-    public RegisterRequest(String name, String username, String password) {
+    public RegisterRequest(String name, String username, String password, String role) {
         this.name = name;
         this.username = username;
         this.password = password;
+        this.role = role;
     }
 
     public String getName() {
@@ -37,4 +39,12 @@ public String getPassword() {
     public void setPassword(String password) {
         this.password = password;
     }
+
+    public String getRole() {
+        return role;
+    }
+
+    public void setRole(String role) {
+        this.role = role;
+    }
 }
diff --git a/src/main/java/com/pi/ati/ort/back/controllers/AuthController.java b/src/main/java/com/pi/ati/ort/back/controllers/AuthController.java
index 3ace0cf..839e159 100644
--- a/src/main/java/com/pi/ati/ort/back/controllers/AuthController.java
+++ b/src/main/java/com/pi/ati/ort/back/controllers/AuthController.java
@@ -46,6 +46,7 @@ public ResponseEntity<User> register(@Valid @RequestBody RegisterRequest registe
         user.setName(registerRequest.getName());
         user.setUsername(registerRequest.getUsername());
         user.setPassword(registerRequest.getPassword());
+        user.setRole(User.Role.valueOf(registerRequest.getRole()));
 
         bimClient.registerUser(user.getUsername(), user.getPassword(), user.getName());
         User createdUser = userService.createUser(user);
diff --git a/src/main/java/com/pi/ati/ort/back/entities/Model.java b/src/main/java/com/pi/ati/ort/back/entities/Model.java
index bfba71a..13d4f73 100644
--- a/src/main/java/com/pi/ati/ort/back/entities/Model.java
+++ b/src/main/java/com/pi/ati/ort/back/entities/Model.java
@@ -3,6 +3,8 @@
 import jakarta.persistence.*;
 import jakarta.validation.constraints.NotNull;
 
+import java.util.Date;
+
 @Entity
 @Table(name = "models")
 public class Model {
@@ -19,6 +21,8 @@ public class Model {
     private Byte file;
     @NotNull
     private Long size;
+    @NotNull
+    private Date created_at = new Date();
 
     public Model() {
     }
@@ -97,4 +101,12 @@ public Long getBimId() {
     public void setBimId(Long bimId) {
         this.bimId = bimId;
     }
+
+    public Date getCreated_at() {
+        return created_at;
+    }
+
+    public void setCreated_at(Date created_at) {
+        this.created_at = created_at;
+    }
 }
diff --git a/src/main/java/com/pi/ati/ort/back/entities/User.java b/src/main/java/com/pi/ati/ort/back/entities/User.java
index 640c3f1..80c0edf 100644
--- a/src/main/java/com/pi/ati/ort/back/entities/User.java
+++ b/src/main/java/com/pi/ati/ort/back/entities/User.java
@@ -3,6 +3,8 @@
 import jakarta.persistence.*;
 import jakarta.validation.constraints.NotNull;
 
+import java.util.Date;
+
 @Entity
 @Table(name = "users")
 public class User {
@@ -16,14 +18,25 @@ public class User {
     private String username;
     @NotNull
     private String password;
+    @Enumerated(EnumType.STRING)
+    private Role role;
+    @NotNull
+    private Date created_at = new Date();
 
     public User() {
     }
 
-    public User(Long id, String username, String password) {
+    public enum Role {
+        USER,
+        ADMIN
+    }
+
+    public User(Long id, String name, String username, String password, Role role) {
         this.id = id;
+        this.name = name;
         this.username = username;
         this.password = password;
+        this.role = role;
     }
 
     public Long getId() {
@@ -58,6 +71,22 @@ public void setPassword(String password) {
         this.password = password;
     }
 
+    public Role getRole() {
+        return role;
+    }
+
+    public void setRole(Role role) {
+        this.role = role;
+    }
+
+    public Date getCreated_at() {
+        return created_at;
+    }
+
+    public void setCreated_at(Date created_at) {
+        this.created_at = created_at;
+    }
+
     @Override
     public String toString() {
         return "User{" +
@@ -65,6 +94,8 @@ public String toString() {
                 ", name='" + name + '\'' +
                 ", username='" + username + '\'' +
                 ", password='" + password + '\'' +
+                ", role=" + role +
+                ", created_at=" + created_at +
                 '}';
     }
 }