diff --git a/PyroFetes/Models/Availability.cs b/PyroFetes/Models/Availability.cs
new file mode 100644
index 0000000..5d85e0d
--- /dev/null
+++ b/PyroFetes/Models/Availability.cs
@@ -0,0 +1,12 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PyroFetes.Models;
+
+public class Availability
+{
+    [Key]    public int Id { get; set; }
+    [Required] public string? AvailabilityDate { get; set; }
+    [Required] public DateOnly DeliveryDate { get; set; }
+    [Required] public DateOnly ExpirationDate { get; set; }
+    [Required] public DateOnly RenewallDate { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/Communication.cs b/PyroFetes/Models/Communication.cs
new file mode 100644
index 0000000..6faa91a
--- /dev/null
+++ b/PyroFetes/Models/Communication.cs
@@ -0,0 +1,13 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PyroFetes.Models;
+
+public class Communication
+{
+    [Key]   public int Id { get; set; }
+    [Required] public string? Calling { get; set; }
+    [Required] public string? Email { get; set; }
+    [Required] public string? Meeting { get; set; }
+    
+    //REL
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/Contact.cs b/PyroFetes/Models/Contact.cs
new file mode 100644
index 0000000..8b6a6cf
--- /dev/null
+++ b/PyroFetes/Models/Contact.cs
@@ -0,0 +1,20 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PyroFetes.Models;
+
+public class Contact
+{
+    [Key] public int Id { get; set; }
+    [Required, MaxLength(100)] public string? LastName { get; set; }
+    [Required, MaxLength(100)] public string? FirstName { get; set; }
+    [Required] public string? Email { get; set; }
+    [Required] public string? PhoneNumber { get; set; }
+    [Required] public string? Address { get; set; }
+    [Required] public string? ZipCode { get; set; }
+    [Required] public string? City { get; set; }
+    [Required] public string? Role { get; set; }
+    
+    //RELATIONS DE CON LA
+    public int CommunicationId { get; set; }
+    public Communication? Communication { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/Customer.cs b/PyroFetes/Models/Customer.cs
new file mode 100644
index 0000000..31f0203
--- /dev/null
+++ b/PyroFetes/Models/Customer.cs
@@ -0,0 +1,16 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PyroFetes.Models;
+
+public class Customer
+{
+    [Key] public int Id { get; set; }
+    [Required] public string? Note { get; set; }
+    
+    //Les relations
+    public int CustomerTypeId { get; set; }
+    public CustomerType? CustomerType { get; set; }
+    
+    public int ContactId { get; set; }
+    public Contact? Contact { get; set; }
+}
diff --git a/PyroFetes/Models/CustomerContact.cs b/PyroFetes/Models/CustomerContact.cs
new file mode 100644
index 0000000..dff5fb2
--- /dev/null
+++ b/PyroFetes/Models/CustomerContact.cs
@@ -0,0 +1,13 @@
+using System.ComponentModel.DataAnnotations;
+using Microsoft.EntityFrameworkCore;
+
+namespace PyroFetes.Models;
+
+[PrimaryKey(nameof(ContactId), nameof(CustomerId))]
+public class CustomerContact
+{
+    public int CustomerId { get; set; }
+    public Customer? Customer { get; set; }
+    public int ContactId { get; set; }
+    public Contact? Contact { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/CustomerType.cs b/PyroFetes/Models/CustomerType.cs
new file mode 100644
index 0000000..3e24483
--- /dev/null
+++ b/PyroFetes/Models/CustomerType.cs
@@ -0,0 +1,11 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PyroFetes.Models;
+
+public class CustomerType
+{
+    [Key]  public int Id { get; set; }
+    [Required] public decimal Price { get; set; }
+    
+    public List<Customer>? Customers { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/ExperienceLevel.cs b/PyroFetes/Models/ExperienceLevel.cs
new file mode 100644
index 0000000..41a1879
--- /dev/null
+++ b/PyroFetes/Models/ExperienceLevel.cs
@@ -0,0 +1,9 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PyroFetes.Models;
+
+public class ExperienceLevel
+{
+    [Key]    public int Id { get; set; }
+    [Required] public string? Label { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/HistoryOfApproval.cs b/PyroFetes/Models/HistoryOfApproval.cs
new file mode 100644
index 0000000..8c85ef8
--- /dev/null
+++ b/PyroFetes/Models/HistoryOfApproval.cs
@@ -0,0 +1,10 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PyroFetes.Models;
+
+public class HistoryOfApproval
+{
+    [Key]    public int Id { get; set; }
+    [Required] public DateOnly ExpirationDate { get; set; }
+    [Required] public DateOnly DeliveryDate { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/Provider.cs b/PyroFetes/Models/Provider.cs
new file mode 100644
index 0000000..f48e2c3
--- /dev/null
+++ b/PyroFetes/Models/Provider.cs
@@ -0,0 +1,14 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PyroFetes.Models;
+
+public class Provider
+{
+    [Key] public int Id { get; set; } 
+    [Required] public decimal Price { get; set; }
+    
+    //Relations
+    
+    public int ProviderId { get; set; }
+    public ProviderType? ProviderType { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/ProviderContact.cs b/PyroFetes/Models/ProviderContact.cs
new file mode 100644
index 0000000..cdfefb3
--- /dev/null
+++ b/PyroFetes/Models/ProviderContact.cs
@@ -0,0 +1,12 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace PyroFetes.Models;
+
+[PrimaryKey(nameof(ContactId), nameof(ProviderId))]
+public class ProviderContact
+{
+    public int ProviderId { get; set; }
+    public Provider? Provider { get; set; }
+    public int ContactId { get; set; }
+    public Contact? Contact { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/ProviderType.cs b/PyroFetes/Models/ProviderType.cs
new file mode 100644
index 0000000..4c8f70c
--- /dev/null
+++ b/PyroFetes/Models/ProviderType.cs
@@ -0,0 +1,9 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PyroFetes.Models;
+
+public class ProviderType
+{
+    [Key]   public int Id { get; set; }
+    [Required] public string? Label { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/StaffAvailability.cs b/PyroFetes/Models/StaffAvailability.cs
new file mode 100644
index 0000000..3ba0732
--- /dev/null
+++ b/PyroFetes/Models/StaffAvailability.cs
@@ -0,0 +1,12 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace PyroFetes.Models;
+
+[PrimaryKey(nameof(AvailabilityId), nameof(StaffId))]
+public class StaffAvailability
+{
+    public int StaffId { get; set; }
+    public Staff? Staff { get; set; }
+    public int AvailabilityId { get; set; }
+    public Availability? Availability { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/StaffContact.cs b/PyroFetes/Models/StaffContact.cs
new file mode 100644
index 0000000..3fb3f87
--- /dev/null
+++ b/PyroFetes/Models/StaffContact.cs
@@ -0,0 +1,12 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace PyroFetes.Models;
+
+[PrimaryKey(nameof(ContactId), nameof(StaffId))]
+public class StaffContact
+{
+    public int StaffId { get; set; }
+    public Staff? Staff { get; set; }
+    public int ContactId { get; set; }
+    public Contact? Contact { get; set; }
+}
\ No newline at end of file
diff --git a/PyroFetes/Models/StaffHistoryOfApproval.cs b/PyroFetes/Models/StaffHistoryOfApproval.cs
new file mode 100644
index 0000000..3937064
--- /dev/null
+++ b/PyroFetes/Models/StaffHistoryOfApproval.cs
@@ -0,0 +1,12 @@
+using Microsoft.EntityFrameworkCore;
+
+namespace PyroFetes.Models;
+
+[PrimaryKey(nameof(HistoryOfApprovalId), nameof(StaffId))]
+public class StaffHistoryOfApproval
+{
+    public int StaffId { get; set; }
+    public Staff? Staff { get; set; }
+    public int HistoryOfApprovalId { get; set; }
+    public HistoryOfApproval? HistoryOfApproval { get; set; }
+}
\ No newline at end of file