diff --git a/Back/skydiveLogs-api.Infrastructure/TunnelFlightRepository.cs b/Back/skydiveLogs-api.Infrastructure/TunnelFlightRepository.cs
index 15a92c6..58a1326 100644
--- a/Back/skydiveLogs-api.Infrastructure/TunnelFlightRepository.cs
+++ b/Back/skydiveLogs-api.Infrastructure/TunnelFlightRepository.cs
@@ -1,9 +1,9 @@
-using LiteDB;
+using System;
+using System.Collections.Generic;
+using LiteDB;
 using skydiveLogs_api.Domain;
 using skydiveLogs_api.DomainService.Repositories;
 using skydiveLogs_api.Infrastructure.Interfaces;
-using System;
-using System.Collections.Generic;
 
 namespace skydiveLogs_api.Infrastructure
 {
@@ -21,6 +21,11 @@ namespace skydiveLogs_api.Infrastructure
 
         #region Public Methods
 
+        /// <summary>
+        /// Adds a new tunnel flight to the database.
+        /// </summary>
+        /// <param name="newTunnelFlight">The tunnel flight instance to insert into the database.</param>
+        /// <returns>The number of rows affected. Returns 0 if the insert operation failed.</returns>
         public int Add(TunnelFlight newTunnelFlight)
         {
             int result;
@@ -38,11 +43,21 @@ namespace skydiveLogs_api.Infrastructure
             return result;
         }
 
+        /// <summary>
+        /// Deletes a tunnel flight by its unique identifier.
+        /// </summary>
+        /// <param name="id">The unique identifier of the tunnel flight to delete.</param>
+        /// <returns><see langword="true"/> if the deletion was successful; otherwise, <see langword="false"/>.</returns>
         public bool DeleteById(int id)
         {
             return _col.Delete(new BsonValue(id));
         }
 
+        /// <summary>
+        /// Retrieves all tunnel flights for a specific user.
+        /// </summary>
+        /// <param name="user">The user whose tunnel flight records to retrieve.</param>
+        /// <returns>An enumerable collection containing all tunnel flight records belonging to the specified user.</returns>
         public IEnumerable<TunnelFlight> GetAll(User user)
         {
             return _col.Include(x => x.Tunnel)
@@ -50,11 +65,22 @@ namespace skydiveLogs_api.Infrastructure
                        .Find(j => j.User.Id == user.Id);
         }
 
+        /// <summary>
+        /// Retrieves all tunnel flights from the database.
+        /// </summary>
+        /// <returns>An enumerable collection containing all tunnel flight records stored in the database.</returns>
         public IEnumerable<TunnelFlight> GetAll()
         {
             throw new System.NotImplementedException();
         }
 
+        /// <summary>
+        /// Retrieves a range of tunnel flights for a specific user with pagination.
+        /// </summary>
+        /// <param name="user">The user whose tunnel flight records to retrieve.</param>
+        /// <param name="beginIndex">The starting index for pagination (inclusive).</param>
+        /// <param name="endIndex">The ending index for pagination (exclusive).</param>
+        /// <returns>An enumerable collection containing the requested range of tunnel flight records.</returns>
         public IEnumerable<TunnelFlight> GetBetweenIndex(User user, int beginIndex, int endIndex)
         {
             return _col.Include(x => x.Tunnel)
@@ -67,6 +93,13 @@ namespace skydiveLogs_api.Infrastructure
                        .ToList();
         }
 
+        /// <summary>
+        /// Retrieves a range of tunnel flights within a date range for a specific user.
+        /// </summary>
+        /// <param name="user">The user whose tunnel flight records to retrieve.</param>
+        /// <param name="beginDate">The start of the date range (inclusive).</param>
+        /// <param name="endDate">The end of the date range (exclusive).</param>
+        /// <returns>An enumerable collection containing the requested range of tunnel flight records within the specified date range.</returns>
         public IEnumerable<TunnelFlight> GetBetweenDate(User user, DateTime beginDate, DateTime endDate)
         {
             return _col.Include(x => x.Tunnel)
@@ -78,21 +111,40 @@ namespace skydiveLogs_api.Infrastructure
                        .ToList();
         }
 
+        /// <summary>
+        /// Retrieves a tunnel flight by its unique identifier.
+        /// </summary>
+        /// <param name="id">The unique identifier of the tunnel flight to retrieve.</param>
+        /// <returns>The tunnel flight record instance if found, otherwise null.</returns>
         public TunnelFlight GetById(int id)
         {
             return _col.FindById(new BsonValue(id));
         }
 
+        /// <summary>
+        /// Gets the total count of tunnel flights for a specific user.
+        /// </summary>
+        /// <param name="user">The user whose tunnel flight records to count.</param>
+        /// <returns>The total number of tunnel flight records for the specified user.</returns>
         public int GetCount(User user)
         {
             return _col.Count(j => j.User.Id == user.Id);
         }
 
+        /// <summary>
+        /// Gets the total count of tunnel flights in the database.
+        /// </summary>
+        /// <returns>The total number of tunnel flight records stored in the database.</returns>
         public int GetCount()
         {
             throw new System.NotImplementedException();
         }
 
+        /// <summary>
+        /// Updates an existing tunnel flight record in the database.
+        /// </summary>
+        /// <param name="updatedTunnelFlight">The tunnel flight instance containing the updated data.</param>
+        /// <returns><see langword="true"/> if the update was successful; otherwise, <see langword="false"/>.</returns>
         public bool Update(TunnelFlight updatedTunnelFlight)
         {
             return _col.Update(updatedTunnelFlight);
@@ -103,8 +155,9 @@ namespace skydiveLogs_api.Infrastructure
         #region Private Fields
 
         private readonly ILiteCollection<TunnelFlight> _col;
+
         private readonly IDataProvider _dataProvider;
 
         #endregion Private Fields
     }
-}
\ No newline at end of file
+}
diff --git a/Back/skydiveLogs-api.Infrastructure/UserImageRepository.cs b/Back/skydiveLogs-api.Infrastructure/UserImageRepository.cs
index 5e51941..611fc86 100644
--- a/Back/skydiveLogs-api.Infrastructure/UserImageRepository.cs
+++ b/Back/skydiveLogs-api.Infrastructure/UserImageRepository.cs
@@ -1,8 +1,9 @@
-using LiteDB;
+using System;
+using System.Collections.Generic;
+using LiteDB;
 using skydiveLogs_api.Domain;
 using skydiveLogs_api.DomainService.Repositories;
 using skydiveLogs_api.Infrastructure.Interfaces;
-using System.Collections.Generic;
 
 namespace skydiveLogs_api.Infrastructure
 {
@@ -20,6 +21,17 @@ namespace skydiveLogs_api.Infrastructure
 
         #region Public Methods
 
+        /// <summary>
+        /// Adds a new user image to the database.
+        /// </summary>
+        /// <param name="newImage">The user image instance to insert into the database.</param>
+        /// <returns>The number of rows affected. Returns 0 if the insert operation failed.</returns>
+        /// <remarks>
+        /// Attempts to insert the new user image into the database using LiteDB.
+        /// The user image should have all required properties set before insertion.
+        /// If an exception occurs during insertion, the method returns 0.
+        /// The returned value indicates the number of records affected by the insert operation.
+        /// </remarks>
         public int Add(UserImage newImage)
         {
             int result;
@@ -37,11 +49,30 @@ namespace skydiveLogs_api.Infrastructure
             return result;
         }
 
+        /// <summary>
+        /// Retrieves all user images from the database.
+        /// </summary>
+        /// <returns>An enumerable collection containing all user image instances stored in the database.</returns>
+        /// <remarks>
+        /// This method is not currently implemented and throws a <see cref="NotImplementedException"/> when called.
+        /// Implement this method to retrieve all user image records from the database.
+        /// </remarks>
+        /// <exception cref="NotImplementedException">Thrown when the method is called.</exception>
         public IEnumerable<UserImage> GetAll()
         {
-            throw new System.NotImplementedException();
+            throw new NotImplementedException();
         }
 
+        /// <summary>
+        /// Retrieves all user images for a specific user.
+        /// </summary>
+        /// <param name="user">The user whose image records to retrieve.</param>
+        /// <returns>An enumerable collection containing all user image instances belonging to the specified user.</returns>
+        /// <remarks>
+        /// Queries the user image collection and retrieves all records where the user ID matches the provided user.
+        /// Each returned image record includes navigation properties to the associated user entity.
+        /// Returns an empty collection if the user has no profile images.
+        /// </remarks>
         public IEnumerable<UserImage> GetAll(User user)
         {
             return _col.Include(x => x.User)
@@ -50,16 +81,46 @@ namespace skydiveLogs_api.Infrastructure
                        .ToList();
         }
 
+        /// <summary>
+        /// Retrieves a user image by its unique identifier.
+        /// </summary>
+        /// <param name="id">The unique identifier of the user image to retrieve.</param>
+        /// <returns>The user image instance if found, otherwise null.</returns>
+        /// <remarks>
+        /// Searches the user image collection for a record with the specified ID.
+        /// Returns null if no user image with the matching ID is found in the database.
+        /// </remarks>
         public UserImage GetById(int id)
         {
             return _col.FindById(new BsonValue(id));
         }
 
+        /// <summary>
+        /// Gets the total count of user images for a specific user.
+        /// </summary>
+        /// <param name="user">The user whose image records to count.</param>
+        /// <returns>The total number of user image records for the specified user.</returns>
+        /// <remarks>
+        /// This method is not currently implemented and throws a <see cref="NotImplementedException"/> when called.
+        /// Implement this method to retrieve the count of user image records per user.
+        /// </remarks>
+        /// <exception cref="NotImplementedException">Thrown when the method is called.</exception>
         public int GetCount()
         {
-            throw new System.NotImplementedException();
+            throw new NotImplementedException();
         }
 
+        /// <summary>
+        /// Updates an existing user image record in the database.
+        /// </summary>
+        /// <param name="image">The user image instance containing the updated data.</param>
+        /// <returns><see langword="true"/> if the update was successful; otherwise, <see langword="false"/>.</returns>
+        /// <remarks>
+        /// Updates the user image record in the database with the provided image instance.
+        /// The user image must have a valid ID to be updated.
+        /// The method returns the result of the underlying LiteDB update operation.
+        /// If the user image does not exist, the update operation will return 0.
+        /// </remarks>
         public bool Update(UserImage image)
         {
             return _col.Update(image);
@@ -70,8 +131,9 @@ namespace skydiveLogs_api.Infrastructure
         #region Private Fields
 
         private readonly ILiteCollection<UserImage> _col;
+
         private readonly IDataProvider _dataProvider;
 
         #endregion Private Fields
     }
-}
\ No newline at end of file
+}