diff --git a/src/main/java/edu/group5/app/model/user/UserRepository.java b/src/main/java/edu/group5/app/model/user/UserRepository.java
index ea63bb8..aec3e9d 100644
--- a/src/main/java/edu/group5/app/model/user/UserRepository.java
+++ b/src/main/java/edu/group5/app/model/user/UserRepository.java
@@ -6,7 +6,13 @@
 
 import edu.group5.app.model.DBRepository;
 import edu.group5.app.utils.ParameterValidator;
-
+/**
+ * Repository class for managing User entities. 
+ * It provides methods to retrieve users, find users by their unique identifier
+ * or email address, and initializes the repository with input data.
+ * The repository uses a HashMap to store 
+ * User objects for efficient retrieval based on their unique identifier.
+ */
 public class UserRepository extends DBRepository<Integer, User> {
   public final static String ROLE_CUSTOMER = "Customer";
 
@@ -69,6 +75,11 @@ public List<Object[]> export() {
 
   }
 
+  /**
+   * Retrieves a copy of the current users in the repository.
+   * @return a HashMap containing the current users, 
+   * where the key is the user ID and the value is the User object
+   */
   public HashMap<Integer, User> getUsers() {
     return new HashMap<>(content);
   }
diff --git a/src/main/java/edu/group5/app/model/wrapper/DbWrapper.java b/src/main/java/edu/group5/app/model/wrapper/DbWrapper.java
index 3325b8c..d0239ae 100644
--- a/src/main/java/edu/group5/app/model/wrapper/DbWrapper.java
+++ b/src/main/java/edu/group5/app/model/wrapper/DbWrapper.java
@@ -14,7 +14,9 @@
 import java.util.logging.Logger;
 
 /**
- * A class for wrapping the database.
+ * A class for wrapping the database. It provides methods for connecting and disconnecting to the database, 
+ * importing and exporting users and donations, and handling SQL exceptions. 
+ * The class uses a logger to log important events and exceptions that occur during database operations.
  */
 public class DbWrapper {
   protected Connection connection;
diff --git a/src/main/java/edu/group5/app/model/wrapper/OrgApiWrapper.java b/src/main/java/edu/group5/app/model/wrapper/OrgApiWrapper.java
index 2a493e4..d2ebb1a 100644
--- a/src/main/java/edu/group5/app/model/wrapper/OrgApiWrapper.java
+++ b/src/main/java/edu/group5/app/model/wrapper/OrgApiWrapper.java
@@ -10,7 +10,8 @@
 import tools.jackson.databind.ObjectMapper;
 
 /**
- * A Class for Wrapping an API.
+ * A Class for Wrapping an API. 
+ * It provides methods for importing data from the API and accessing the imported data.
  */
 public class OrgApiWrapper extends Wrapper {
   private Object[] data;
diff --git a/src/main/java/edu/group5/app/model/wrapper/Wrapper.java b/src/main/java/edu/group5/app/model/wrapper/Wrapper.java
index 85d8dc8..cc54c29 100644
--- a/src/main/java/edu/group5/app/model/wrapper/Wrapper.java
+++ b/src/main/java/edu/group5/app/model/wrapper/Wrapper.java
@@ -2,6 +2,9 @@
 
 /**
  * An abstract class for all Wrappers of datasets.
+ * This class defines the structure for dataset wrappers, which are responsible for importing data from various sources
+ * and providing access to the imported data. Each wrapper must implement the importData method to handle the specific
+ * data import logic and the getData method to return the imported data in a suitable format.
  */
 abstract class Wrapper {