diff --git a/DTOs/AppUserDTO.cs b/DTOs/AppUserDTO.cs
new file mode 100644
index 0000000..b2009d3
--- /dev/null
+++ b/DTOs/AppUserDTO.cs
@@ -0,0 +1,52 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using TicketManager.Models;
+
+namespace TicketManager.DTO
+{
+    public class AppUserDTO
+    {
+        public AppUserDTO(AppUser user)
+        {
+            Id = user.Id;
+            FirstName = user.FirstName;
+            LastName = user.LastName;
+            Presentation = user.Presentation;
+            Email = user.Email;
+            Phone = user.Phone;
+            Created_at = user.Created_at;
+            Picture = user.Picture;
+            Activities = user.Activities;
+            Projects = user.GetProjects();
+            Tickets = user.GetTickets();
+        }
+
+        public Guid Id { get; set; }
+
+        public string FirstName { get; set; }
+
+        public string LastName { get; set; }
+
+        public string FullName => $"{FirstName} {LastName}";
+
+        public string Presentation { get; set; }
+
+        [DataType(DataType.EmailAddress)]
+        public string Email { get; set; }
+
+        [DataType(DataType.PhoneNumber)]
+        public string Phone { get; set; }
+
+        [DataType(DataType.Date)]
+        public DateTime Created_at { get; private set; } = DateTime.Now;
+
+        public string Picture { get; set; }
+
+        public List<Activity> Activities { get; set; } = new List<Activity>();
+
+        public List<Project> Projects { get; set; } = new List<Project>();
+
+        public List<Ticket> Tickets { get; set; } = new List<Ticket>();
+    }
+}
\ No newline at end of file
diff --git a/DTOs/ProjectDTO.cs b/DTOs/ProjectDTO.cs
new file mode 100644
index 0000000..ba8d098
--- /dev/null
+++ b/DTOs/ProjectDTO.cs
@@ -0,0 +1,48 @@
+using System;
+using System.Collections.Generic;
+using TicketManager.Models;
+
+namespace TicketManager.DTO
+{
+    public class ProjectDTO
+    {
+        public ProjectDTO(Project project)
+        {
+            Id = project.Id;
+            Title = project.Title;
+            Description = project.Description;
+            CreatedAt = project.CreatedAt;
+            Progression = project.Progression;
+            Status = project.Status.ToString();
+            Manager = project.Manager;
+            Users = project.GetMembers();
+            Tickets = project.Tickets;
+            Activities = project.Activities;
+            Files = project.Files;
+        }
+
+        public int Id { get; set; }
+
+        public string Title { get; set; }
+
+        public string Description { get; set; }
+
+        public DateTime CreatedAt { get; private set; } = DateTime.Now;
+
+        public DateTime PlannedEnding { get; set; }
+
+        public decimal Progression { get; set; }
+
+        public string Status { get; set; }
+
+        public AppUser Manager { get; set; }
+
+        public List<AppUser> Users { get; set; } = new List<AppUser>();
+
+        public List<Ticket> Tickets { get; set; } = new List<Ticket>();
+
+        public List<Activity> Activities { get; set; } = new List<Activity>();
+
+        public List<File> Files { get; set; } = new List<File>();
+    }
+}
\ No newline at end of file
diff --git a/DTOs/TicketDTO.cs b/DTOs/TicketDTO.cs
new file mode 100644
index 0000000..cdacb99
--- /dev/null
+++ b/DTOs/TicketDTO.cs
@@ -0,0 +1,60 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using TicketManager.Models;
+
+namespace TicketManager.DTO
+{
+    public class TicketDTO
+    {
+        public TicketDTO(Ticket ticket)
+        {
+            Id = ticket.Id;
+            Title = ticket.Title;
+            Description = ticket.Description;
+            CreatedAt = ticket.CreatedAt;
+            PlannedEnding = ticket.PlannedEnding;
+            Status = ticket.Status.ToString();
+            Impact = ticket.Impact.ToString();
+            Difficulty = ticket.Difficulty.ToString();
+            Category = ticket.Category.ToString();
+            CreatorId = ticket.CreatorId;
+            Project = ticket.Project;
+            Notes = ticket.Notes;
+            Activities = ticket.Activities;
+            Files = ticket.Files;
+            Users = ticket.GetAssignees();
+        }
+        public int Id { get; set; }
+
+        public string Title { get; set; }
+
+        public string Description { get; set; }
+
+        [DataType(DataType.Date)]
+        public DateTime CreatedAt { get; private set; }
+
+        [DataType(DataType.Date)]
+        public DateTime PlannedEnding { get; set; }
+
+        public string Status { get; set; }
+
+        public string Impact { get; set; }
+
+        public string Difficulty { get; set; }
+
+        public string Category { get; set; }
+
+        public Guid CreatorId { get; set; }
+
+        public Project Project { get; set; }
+
+        public List<Note> Notes { get; set; } = new List<Note>();
+
+        public List<Activity> Activities { get; set; } = new List<Activity>();
+
+        public List<File> Files { get; set; } = new List<File>();
+
+        public List<AppUser> Users { get; set; } = new List<AppUser>();
+    }
+}
\ No newline at end of file