diff --git a/Trenser.Zenvy/Trenser.Zenvy/Trenser.Zenvy.cpp b/Trenser.Zenvy/Trenser.Zenvy/Trenser.Zenvy.cpp
index 4413069..64b1e4b 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/Trenser.Zenvy.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/Trenser.Zenvy.cpp
@@ -1,4 +1,12 @@
+/*
+ * File: Trenser.Zenvy.cpp
+ * Description: Zenvy Main
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include "UserInterface.h"
+
 int main()
 {
 	UserInterface userInterFace;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.cpp b/Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.cpp
index 3d97204..162bdd2 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.cpp
@@ -1,16 +1,53 @@
+/*
+ * File: ZenvyController.cpp
+ * Description : Controls data flow between UI and Service Layers.
+ * Author: Trenser
+ * Created : 01-04-2026
+ */
+
 #include "ZenvyController.h"
 
-//Authentication
+/*
+ * Function: login
+ * Description: authenticates the employee based on email and password
+ * Parameters:
+ *    email - email of the employee
+ *    password - password of the employee
+ * Returns:
+ *    Tuple - login status, employee type, employee designation
+ *	  login status - success or failed
+ *    employee type - type of the employee logged in
+ *    employee designation - designation if employee type is GENERAL.
+ */
+
 AuthenticationDTO ZenvyController::login(const std::string& email, const std::string& password)
 {
 	return m_authenticationManagementService->login(email, password);
 }
 
+/*
+ * Function: changePassword
+ * Description: updates the password of the currently authenticated employee.
+ * Parameters:
+ *    password - the new password to be set for the employee
+ * Returns:
+ *    void - no return value
+ */
+
 void ZenvyController::logout()
 {
 	m_authenticationManagementService->logout();
 }
 
+/*
+ * Function: changePassword
+ * Description: updates the password of the currently authenticated employee.
+ * Parameters:
+ *    password - the new password to be set for the employee
+ * Returns:
+ *    void - no return value
+ */
+
 void ZenvyController::changePassword(const std::string& password)
 {
 	m_authenticationManagementService->changePassword(password);
diff --git a/Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.h b/Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.h
index 1a5c77b..364ec49 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/controllers/ZenvyController.h
@@ -1,3 +1,10 @@
+/*
+ * File: ZenvyController.h
+ * Description : Controls data flow between UI and Service Layers.
+ * Author: Trenser
+ * Created : 01-04-2026
+ */
+
 #pragma once
 #include <memory>
 #include <utility>
diff --git a/Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.cpp b/Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.cpp
index 16ddca1..64694df 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.cpp
@@ -1,31 +1,92 @@
+/*
+ * File: DataStore.cpp
+ * Description: Central Storage for all the System Data.
+ * Author: Trenser
+ * Created: 01-04-2026
+ */
+
 #include "DataStore.h"
 
+/*
+ * Function: getInstance
+ * Description: provides a singleton instance of the DataStore.
+ * Parameters:
+ *    None
+ * Returns:
+ *    DataStore& - reference to the single DataStore object.
+ */
+
 DataStore& DataStore::getInstance()
 {
 	static DataStore dataStore;
 	return dataStore;
 }
 
+/*
+ * Function: getLogs
+ * Description: retrieves the log map containing system logs.
+ * Parameters:
+ *    None
+ * Returns:
+ *    logMap& - reference to the log map.
+ */
+
 logMap& DataStore::getLogs()
 {
 	return m_logs;
 }
 
+/*
+ * Function: getAuthenticatedEmployee
+ * Description: returns the currently authenticated employee.
+ * Parameters:
+ *    None
+ * Returns:
+ *    std::shared_ptr<Employee>& - reference to the authenticated employee object.
+ */
+
 std::shared_ptr<Employee>& DataStore::getAuthenticatedEmployee()
 {
 	return m_authenticatedEmployee;
 }
 
+/*
+ * Function: setAuthenticatedEmployee
+ * Description: sets the currently authenticated employee.
+ * Parameters:
+ *    authenticatedEmployee - shared pointer to the employee object to be set as authenticated.
+ * Returns:
+ *    void - no return value.
+ */
+
 void DataStore::setAuthenticatedEmployee(std::shared_ptr<Employee> authenticatedEmployee)
 {
 	m_authenticatedEmployee = authenticatedEmployee;
 }
 
+/*
+ * Function: getEmployees
+ * Description: retrieves the employee map containing all employees.
+ * Parameters:
+ *    None
+ * Returns:
+ *    employeeMap& - reference to the employee map.
+ */
+
 employeeMap& DataStore::getEmployees()
 {
 	return m_employees;
 }
 
+/*
+ * Function: getAuthenticatedUser
+ * Description: alias for getAuthenticatedEmployee, returns the currently authenticated employee.
+ * Parameters:
+ *    None
+ * Returns:
+ *    std::shared_ptr<Employee>& - reference to the authenticated employee object.
+ */
+
 std::shared_ptr<Employee>& DataStore::getAuthenticatedUser()
 {
 	return m_authenticatedEmployee;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.h b/Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.h
index 5ecfb70..603d49c 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/datastores/DataStore.h
@@ -1,3 +1,10 @@
+/*
+ * File: DataStore.h
+ * Description: Central Storage for all the System Data.
+ * Author: Trenser
+ * Created: 01-04-2026
+ */
+
 #pragma once
 #include <memory>
 #include <map>
diff --git a/Trenser.Zenvy/Trenser.Zenvy/factories/Factory.h b/Trenser.Zenvy/Trenser.Zenvy/factories/Factory.h
index 0c54b81..f65c267 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/factories/Factory.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/factories/Factory.h
@@ -1,3 +1,10 @@
+/*
+ * File: Factory.h
+ * Description: Provides a generic factory utility to create shared_ptr instances of objects.
+ * Author: Ajmal J S
+ * Created: 01-04-2026
+ */
+
 #pragma once
 #include <memory>
 #include <utility>
@@ -5,6 +12,17 @@
 class Factory
 {
 public:
+
+    /*
+    * Function: getObject
+    * Description: Creates and returns a shared_ptr to an object of type T.
+    * Parameters:
+    *    T - the type of object to be created
+    *    Args - constructor arguments forwarded to T's constructor
+    * Returns:
+    *    std::shared_ptr<T> - a shared pointer managing the newly created object
+    */
+
 	template<typename T, typename... Args>
 	static std::shared_ptr<T> getObject(Args&&... args)
 	{
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Admin.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Admin.cpp
index 0cc2b4c..f63c352 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Admin.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Admin.cpp
@@ -1 +1,7 @@
+/*
+ * File: Admin.cpp
+ * Description: Admin model class
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Admin.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Admin.h b/Trenser.Zenvy/Trenser.Zenvy/models/Admin.h
index 97f4f4e..f507ccc 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Admin.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Admin.h
@@ -1,3 +1,10 @@
+/*
+ * File: Admin.h
+ * Description: Admin model class
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
+
 #pragma once
 #include "Employee.h"
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Announcement.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Announcement.cpp
index 01cec1a..67e0c4e 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Announcement.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Announcement.cpp
@@ -1,3 +1,9 @@
+/*
+ * File: Announcement.cpp
+ * Description: The Announcement class that stores an announcement’s ID, timestamp, and message with getter and setter functions for controlled access.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Announcement.h"
 
 const std::string& Announcement::getAnnouncementId() const
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Attendance.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Attendance.cpp
index 7565537..bcbf622 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Attendance.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Attendance.cpp
@@ -1,3 +1,9 @@
+/*
+ * File: Attendance.cpp
+ * Description: The Attendance class manages attendance records by storing login and logout times.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Attendance.h"
 
 const std::string& Attendance::getAttendanceId() const
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Attendance.h b/Trenser.Zenvy/Trenser.Zenvy/models/Attendance.h
index 3b10f5c..89f4ed3 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Attendance.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Attendance.h
@@ -1,3 +1,9 @@
+/*
+ * File: Attendance.h
+ * Description: The Attendance class represents an attendance record by storing an ID, login and logout timestamps.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include <string>
 #include "Timestamp.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Booking.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Booking.cpp
index a40ed2b..6689689 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Booking.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Booking.cpp
@@ -1,3 +1,9 @@
+/*
+ * File: Booking.cpp
+ * Description: The Booking class stores booking details and calculates the duration between start and end times.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Booking.h"
 
 const std::string& Booking::getBookingId() const
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Booking.h b/Trenser.Zenvy/Trenser.Zenvy/models/Booking.h
index 7e99b4a..f88c084 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Booking.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Booking.h
@@ -1,3 +1,9 @@
+/*
+ * File: Booking.h
+ * Description: The Booking class represents a time?based booking with employee and team details and supports duration calculation.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include <string>
 #include <memory>
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Candidate.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Candidate.cpp
index e4831a4..8394260 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Candidate.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Candidate.cpp
@@ -1,3 +1,9 @@
+/*
+ * File: Candidate.cpp
+ * Description: The Candidate class manages candidate details and status using getter and setter methods.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Candidate.h"
 
 const std::string& Candidate::getCandidateId() const
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Candidate.h b/Trenser.Zenvy/Trenser.Zenvy/models/Candidate.h
index 257c54d..aefb893 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Candidate.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Candidate.h
@@ -1,3 +1,9 @@
+/*
+ * File: Candidate.h
+ * Description: The Candidate class stores and manages a candidate’s information.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include <string>
 #include "Enums.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Employee.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Employee.cpp
index 4bd8c3b..68c1963 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Employee.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Employee.cpp
@@ -1,3 +1,9 @@
+/*
+ * File: Employee.cpp
+ * Description: The Employee class stores and manages employee details along with related work records.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "Employee.h"
 
 const std::string& Employee::getEmployeeId() const
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Employee.h b/Trenser.Zenvy/Trenser.Zenvy/models/Employee.h
index 3509db1..400eebd 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Employee.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Employee.h
@@ -1,3 +1,9 @@
+/*
+ * File: Employee.h
+ * Description: The Employee class manages employee information and associated work records such as payroll, attendance, leaves, and payslips.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include <string>
 #include <memory>
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/FAQ.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/FAQ.cpp
index 63a403f..a5e7b41 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/FAQ.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/FAQ.cpp
@@ -1 +1,7 @@
+/*
+ * File: Faq.h
+ * Description: Faq model class.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
 #include "Faq.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/FAQ.h b/Trenser.Zenvy/Trenser.Zenvy/models/FAQ.h
index b90edff..3788612 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/FAQ.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/FAQ.h
@@ -1,3 +1,9 @@
+/*
+ * File: Faq.h
+ * Description: Faq model class.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
 #pragma once
 
 class Faq
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.cpp
index ec96663..93d3b6c 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.cpp
@@ -1 +1,7 @@
+/*
+ * File: FinanceExecutive.h
+ * Description: FinanceExecutive model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "FinanceExecutive.h"
\ No newline at end of file
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.h b/Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.h
index 8aafc69..2f529bb 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/FinanceExecutive.h
@@ -1,3 +1,9 @@
+/*
+ * File: FinanceExecutive.h
+ * Description: FinanceExecutive model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include "Employee.h"
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/GeneralEmployee.h b/Trenser.Zenvy/Trenser.Zenvy/models/GeneralEmployee.h
index 6307e28..2c40288 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/GeneralEmployee.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/GeneralEmployee.h
@@ -1,3 +1,9 @@
+/*
+ * File: GeneralEmployee.h
+ * Description: The GeneralEmployee class represents a general employee with a specific designation.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include "Employee.h"
 #include "Enums.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/HRManager.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/HRManager.cpp
index 4b7ee33..8f9615f 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/HRManager.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/HRManager.cpp
@@ -1 +1,7 @@
+/*
+ * File: HRManager.cpp
+ * Description: HRManager model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "HRManager.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/HRManager.h b/Trenser.Zenvy/Trenser.Zenvy/models/HRManager.h
index 5e50a74..fda356c 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/HRManager.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/HRManager.h
@@ -1,3 +1,9 @@
+/*
+ * File: HRManager.h
+ * Description: HRManager model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include "Employee.h"
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.cpp
index 700fcd9..7beaf7d 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.cpp
@@ -1 +1,7 @@
+/*
+ * File: ITExecutive.cpp
+ * Description: ITExecutive model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #include "ITExecutive.h"
\ No newline at end of file
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.h b/Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.h
index 2a61ef8..b839ae4 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/ITExecutive.h
@@ -1,3 +1,9 @@
+/*
+ * File: ITExecutive.h
+ * Description: ITExecutive model class.
+ * Author: Trenser
+ * Created: 31-Mar-2026
+ */
 #pragma once
 #include "Employee.h"
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/JobListing.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/JobListing.cpp
index ba1267c..0d4b30e 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/JobListing.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/JobListing.cpp
@@ -1,5 +1,13 @@
+/*
+File: JobListing.cpp
+* Description : Represents a job opening along with its details and applied candidates.
+* Author : Trenser
+* Created : 01 - Apr - 2026
+*/
+
 #include "JobListing.h"
 
+//Getters and setters
 const std::string& JobListing::getJobId() const
 {
     return m_id;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/JobListing.h b/Trenser.Zenvy/Trenser.Zenvy/models/JobListing.h
index 3622743..10b6c57 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/JobListing.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/JobListing.h
@@ -1,3 +1,10 @@
+/*
+File: JobListing.h
+* Description : Represents a job opening along with its details and applied candidates.
+* Author : Trenser
+* Created : 01 - Apr - 2026
+*/
+
 #pragma once
 #include <string>
 #include <map>
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Leave.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Leave.cpp
index 1755bc7..4ac215b 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Leave.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Leave.cpp
@@ -1,5 +1,13 @@
+/*
+File: Leave.cpp
+* Description : Stores information related to an employee’s leave application.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #include "Leave.h"
 
+//Getters and setters
 const std::string& Leave::getLeaveId() const
 {
     return m_id;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Leave.h b/Trenser.Zenvy/Trenser.Zenvy/models/Leave.h
index 0133f4a..a7588e2 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Leave.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Leave.h
@@ -1,3 +1,10 @@
+/*
+File: Leave.h
+* Description : Stores information related to an employee’s leave application.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #pragma once
 #include <string>
 #include "Enums.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Log.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Log.cpp
index 890cfc5..a022679 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Log.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Log.cpp
@@ -1,5 +1,13 @@
+/*
+File: Log.cpp
+* Description : Represents a log entry containing a timestamp and an associated message.
+* Author : Trenser
+* Created : 01 - Apr - 2026
+*/
+
 #include "Log.h"
 
+//Getters and setters
 const util::Timestamp& Log::getTimestamp() const
 {
     return m_timestamp;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Log.h b/Trenser.Zenvy/Trenser.Zenvy/models/Log.h
index f2350b2..416d7fb 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Log.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Log.h
@@ -1,3 +1,10 @@
+/*
+File: Log.h
+* Description : Represents a log entry containing a timestamp and an associated message.
+* Author : Trenser
+* Created : 01 - Apr - 2026
+*/
+
 #pragma once
 #include <string>
 #include "Timestamp.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Notification.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Notification.cpp
index f91530a..2bc0c0d 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Notification.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Notification.cpp
@@ -1,5 +1,13 @@
+/*
+File: Notification.cpp
+* Description : Represents an employee notification with message and status details.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #include "Notification.h"
 
+//Getters and setters
 const std::string& Notification::getNotificationId() const
 {
     return m_id;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Notification.h b/Trenser.Zenvy/Trenser.Zenvy/models/Notification.h
index 0cd723c..cf76caf 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Notification.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Notification.h
@@ -1,3 +1,10 @@
+/*
+File: Notification.h
+* Description : Represents an employee notification with message and status details.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #pragma once
 #include <string>
 #include "Enums.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Payroll.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Payroll.cpp
index eae13a1..b76ab8d 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Payroll.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Payroll.cpp
@@ -1,5 +1,13 @@
+/*
+File: Payroll.cpp
+* Description : Stores payroll and salary breakdown details for an employee.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #include "Payroll.h"
 
+//Getters and setters
 const std::string& Payroll::getPayrollId() const
 {
     return m_id;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Payroll.h b/Trenser.Zenvy/Trenser.Zenvy/models/Payroll.h
index 498eaf8..3ebe780 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Payroll.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Payroll.h
@@ -1,3 +1,10 @@
+/*
+File: Payroll.h
+* Description : Stores payroll and salary breakdown details for an employee.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #pragma once
 #include <string>
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Payslip.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Payslip.cpp
index 3daf4b9..70e42e7 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Payslip.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Payslip.cpp
@@ -1,5 +1,13 @@
+/*
+File: Payslip.cpp
+* Description : Models a payslip entity that stores salary information.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #include "Payslip.h"
 
+//Getters and setters
 const std::string& Payslip::getPayslipId() const
 {
     return m_id;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Payslip.h b/Trenser.Zenvy/Trenser.Zenvy/models/Payslip.h
index 3f48dd2..06d0023 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Payslip.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Payslip.h
@@ -1,3 +1,10 @@
+/*
+File: Payslip.h
+* Description : Models a payslip entity that stores salary information.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #pragma once
 #include <string>
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Room.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Room.cpp
index 9fcd521..cb5abbb 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Room.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Room.cpp
@@ -1,5 +1,13 @@
+/*
+File: Room.cpp
+* Description : Models a room entity that maintains room details and manages its bookings.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #include "Room.h"
 
+//Getters and setters
 const std::string& Room::getRoomId() const
 {
     return m_id;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Room.h b/Trenser.Zenvy/Trenser.Zenvy/models/Room.h
index 48a4ba1..595ffaa 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Room.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Room.h
@@ -1,3 +1,10 @@
+/*
+File: Room.h
+* Description : Models a room entity that maintains room details and manages its bookings.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #pragma once
 #include <string>
 #include <map>
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.cpp
index de7213f..112c3d0 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.cpp
@@ -1 +1,8 @@
+/*
+File: TalentExecutive.cpp
+* Description : Represents information related to a talent executive in the system.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #include "TalentExecutive.h"
\ No newline at end of file
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.h b/Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.h
index fcbfbcd..a5bfa6e 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/TalentExecutive.h
@@ -1,3 +1,10 @@
+/*
+File: TalentExecutive.h
+* Description : Represents information related to a talent executive in the system.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #pragma once
 #include "Employee.h"
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Team.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Team.cpp
index a6848b3..4a26647 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Team.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Team.cpp
@@ -1,5 +1,13 @@
+/*
+File: Team.cpp
+* Description : Models a team entity that maintains team identity, leadership, employee list, and size limitations.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #include "Team.h"
 
+//Getters and setters
 const std::string& Team::getTeamId() const
 {
     return m_id;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Team.h b/Trenser.Zenvy/Trenser.Zenvy/models/Team.h
index edb8f44..e353aa3 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Team.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Team.h
@@ -1,3 +1,10 @@
+/*
+File: Team.h
+* Description : Models a team entity that maintains team identity, leadership, employee list, and size limitations.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #pragma once
 #include <string>
 #include <map>
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.cpp
index df14a3f..aac8db4 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.cpp
@@ -1 +1,8 @@
+/*
+File: TeamExecutive.cpp
+* Description : Represents information related to a team executive within the system.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #include "TeamExecutive.h"
\ No newline at end of file
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.h b/Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.h
index d7db4e9..1bd7def 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/TeamExecutive.h
@@ -1,3 +1,10 @@
+/*
+File: TeamExecutive.h
+* Description : Represents information related to a team executive within the system.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #pragma once
 #include "Employee.h"
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Ticket.cpp b/Trenser.Zenvy/Trenser.Zenvy/models/Ticket.cpp
index 328421c..af67e08 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Ticket.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Ticket.cpp
@@ -1,5 +1,13 @@
+/*
+File: Ticket.cpp
+* Description : Represents a support ticket with its associated details and status.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #include "Ticket.h"
 
+//Getters and setters
 const std::string& Ticket::getTicketId() const
 {
     return m_id;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/models/Ticket.h b/Trenser.Zenvy/Trenser.Zenvy/models/Ticket.h
index 7d54a6f..88f8ed8 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/models/Ticket.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/models/Ticket.h
@@ -1,3 +1,10 @@
+/*
+File: Ticket.h
+* Description : Represents a support ticket with its associated details and status.
+* Author : Trenser
+* Created : 31 - Mar - 2026
+*/
+
 #pragma once
 #include <string>
 #include "Enums.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.cpp
index cb68b98..e5a0d0e 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.cpp
@@ -1 +1,8 @@
+/*
+ * File: ApplicationConfig.cpp
+ * Description: Global Application Config
+ * Author: Trenser
+ * Created: 06-Apr-2026
+ */
+
 #include "ApplicationConfig.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.h b/Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.h
index 8e4705e..bbeadd1 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/ApplicationConfig.h
@@ -1,3 +1,10 @@
+/*
+ * File: ApplicationConfig.h
+ * Description: Global Application Config
+ * Author: Trenser
+ * Created: 06-Apr-2026
+ */
+
 #pragma once
 
 namespace Config
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.cpp
index fb3ab62..2ab575a 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.cpp
@@ -1 +1,8 @@
+/*
+ * File: AttendanceManagementService.cpp
+ * Description: Handles Attendance related operations
+ * Author: Trenser
+ * Created: 30-Apr-2026
+ */
+
 #include "AttendanceManagementService.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.h b/Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.h
index 64374bf..5f12270 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/AttendanceManagementService.h
@@ -1,3 +1,10 @@
+/*
+ * File: AttendanceManagementService.h
+ * Description: Handles Attendance related operations
+ * Author: Trenser
+ * Created: 30-Apr-2026
+ */
+
 #pragma once
 class AttendanceManagementService
 {
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.cpp
index 9d7fc4f..642c868 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.cpp
@@ -1,65 +1,103 @@
+/*
+ * File: AuthenticationManagementService.cpp
+ * Description: Handles authentication related operations
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include <stdexcept>
 #include "AuthenticationManagementService.h"
 #include "ApplicationConfig.h"
 
+/*
+ * Function: login
+ * Description: Authenticates a user using email and password, determines login status,
+ *              employee type, and designation, and sets the authenticated employee
+ *              in the data store.
+ * Parameters:
+ *    email - employee email address
+ *    password - employee password
+ * Returns:
+ *    AuthenticationDTO containing login status, employee type, and employee designation
+ */
 AuthenticationDTO AuthenticationManagementService::login(const std::string& email, const std::string& password)
 {
-	employeeMap& employees = m_dataStore.getEmployees();
-	Enums::LoginStatus loginStatus = Enums::LoginStatus::USER_NOT_FOUND;
-	Enums::EmployeeType employeeType = Enums::EmployeeType::INVALID;
-	Enums::EmployeeDesignation employeeDesignation = Enums::EmployeeDesignation::INVALID;
-	for (const auto& employee : employees)
-	{
-		if (employee.second->getEmployeeEmail() == email)
-		{
-			if (employee.second->getEmployeePassword() == password)
-			{
-				if (password == Config::Authentication::DEFAULT_PASSWORD)
-				{
-					loginStatus = Enums::LoginStatus::FIRST_LOGIN;
-				}
-				else
-				{
-					loginStatus = Enums::LoginStatus::SUCCESS;
-				}
-				employeeType = employee.second->getEmployeeType();
-				if (employeeType == Enums::EmployeeType::GENERAL)
-				{
-					std::shared_ptr<GeneralEmployee> generalEmployee = std::dynamic_pointer_cast<GeneralEmployee>(employee.second);
-					if (generalEmployee)
-					{
-						employeeDesignation = generalEmployee->getDesignation();
-					}
-					else
-					{
-						throw std::runtime_error("Invalid Employee Type");
-					}
-				}
-				m_dataStore.setAuthenticatedEmployee(employee.second);
-			}
-			else
-			{
-				loginStatus = Enums::LoginStatus::INVALID_PASSWORD;
-			}
-			break;
-		}
-	}
-	return std::make_tuple(loginStatus, employeeType, employeeDesignation);
+    employeeMap& employees = m_dataStore.getEmployees();
+    Enums::LoginStatus loginStatus = Enums::LoginStatus::USER_NOT_FOUND;
+    Enums::EmployeeType employeeType = Enums::EmployeeType::INVALID;
+    Enums::EmployeeDesignation employeeDesignation = Enums::EmployeeDesignation::INVALID;
+    for (const auto& employee : employees)
+    {
+        if (employee.second->getEmployeeEmail() == email)
+        {
+            if (employee.second->getEmployeePassword() == password)
+            {
+                if (password == Config::Authentication::DEFAULT_PASSWORD)
+                {
+                    loginStatus = Enums::LoginStatus::FIRST_LOGIN;
+                }
+                else
+                {
+                    loginStatus = Enums::LoginStatus::SUCCESS;
+                }
+                employeeType = employee.second->getEmployeeType();
+                if (employeeType == Enums::EmployeeType::GENERAL)
+                {
+                    std::shared_ptr<GeneralEmployee> generalEmployee = std::dynamic_pointer_cast<GeneralEmployee>(employee.second);
+                    if (generalEmployee)
+                    {
+                        employeeDesignation = generalEmployee->getDesignation();
+                    }
+                    else
+                    {
+                        throw std::runtime_error("Invalid Employee Type");
+                    }
+                }
+                m_dataStore.setAuthenticatedEmployee(employee.second);
+            }
+            else
+            {
+                loginStatus = Enums::LoginStatus::INVALID_PASSWORD;
+            }
+            break;
+        }
+    }
+    return std::make_tuple(loginStatus, employeeType, employeeDesignation);
 }
 
+/*
+ * Function: changePassword
+ * Description: Updates the password of the currently authenticated user.
+ * Parameters:
+ *    password - new password to be set
+ * Returns:
+ *    None
+ * Throws:
+ *    runtime_error if no authenticated user is found
+ */
 void AuthenticationManagementService::changePassword(const std::string& password)
 {
-	std::shared_ptr<Employee> authenticatedUser = m_dataStore.getAuthenticatedUser();
-	if (authenticatedUser)
-	{
-		authenticatedUser->setEmployeePassword(password);
-	}
-	else
-	{
-		throw std::runtime_error("User not found");
-	}
+    std::shared_ptr<Employee> authenticatedUser = m_dataStore.getAuthenticatedUser();
+    if (authenticatedUser)
+    {
+        authenticatedUser->setEmployeePassword(password);
+    }
+    else
+    {
+        throw std::runtime_error("User not found");
+    }
 }
 
+/*
+ * Function: logout
+ * Description: Logs out the currently authenticated user by clearing authentication data.
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ * Throws:
+ *    runtime_error if no user is currently logged in
+ */
 void AuthenticationManagementService::logout() {
 	if (m_dataStore.getAuthenticatedUser()) {
 		m_dataStore.getAuthenticatedUser() = nullptr;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.h b/Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.h
index f838311..392065b 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/AuthenticationManagementService.h
@@ -1,3 +1,10 @@
+/*
+ * File: AuthenticationManagementService.h
+ * Description: Handles authentication related operations
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #pragma once
 #include <string>
 #include <map>
@@ -19,4 +26,3 @@ public:
 	void logout();
 	void changePassword(const std::string&);
 };
-
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.cpp
index db5a4c9..cb032c3 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.cpp
@@ -1 +1,8 @@
+/*
+ * File: BookingManagementService.cpp
+ * Description: Handle operations related to booking meetings
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include "BookingManagementService.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.h b/Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.h
index 75d7d57..7f343a4 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/BookingManagementService.h
@@ -1,3 +1,10 @@
+/*
+ * File: BookingManagementService.h
+ * Description: Handle operations related to booking meetings
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #pragma once
 class BookingManagementService
 {
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.cpp
index bf8ad9d..5fdebfe 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.cpp
@@ -1 +1,8 @@
+/*
+ * File: EmployeeManagementService.cpp
+ * Description: Handle operations related to employees
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include "EmployeeManagememtService.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.h b/Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.h
index 05e6ca7..3bb2294 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/EmployeeManagememtService.h
@@ -1,3 +1,10 @@
+/*
+ * File: EmployeeManagementService.h
+ * Description: Handle operations related to employees
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #pragma once
 class EmployeeManagememtService
 {
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.cpp
index a40f268..733f9eb 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.cpp
@@ -1 +1,8 @@
+/*
+ * File: LeaveManagementService.cpp
+ * Description: Handle operations related to leaves
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include "LeaveManagementService.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.h b/Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.h
index 6447f13..1010ec4 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/LeaveManagementService.h
@@ -1,3 +1,10 @@
+/*
+ * File: LeaveManagementService.h
+ * Description: Handle operations related to leaves
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #pragma once
 class LeaveManagementService
 {
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/LogService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/LogService.cpp
index 1742a3d..3e77020 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/LogService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/LogService.cpp
@@ -1,3 +1,10 @@
+/*
+ * File: Log.cpp
+ * Description: Handle operations related to logging
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
+
 #include "LogService.h"
 #include "Log.h"
 #include "Factory.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/LogService.h b/Trenser.Zenvy/Trenser.Zenvy/services/LogService.h
index 6918b25..c1cf644 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/LogService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/LogService.h
@@ -1,3 +1,10 @@
+/*
+ * File: Log.h
+ * Description: Handle operations related to logging
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
+
 #pragma once
 #include "Log.h"
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.cpp
index cc23059..7eaa377 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.cpp
@@ -1 +1,8 @@
+/*
+ * File: NotificationManagementService.cpp
+ * Description: Handle operations related to notifications
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include "NotificationManagementService.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.h b/Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.h
index f976574..6b4aba1 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/NotificationManagementService.h
@@ -1,5 +1,11 @@
+/*
+ * File: NotificationManagementService.h
+ * Description: Handle operations related to notifications
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #pragma once
 class NotificationManagementService
 {
 };
-
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.cpp
index 154cf1f..57ca929 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.cpp
@@ -1 +1,8 @@
+/*
+ * File: PayslipManagementService.cpp
+ * Description: Handle operations related to employee payslips
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include "PayslipManagementService.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.h b/Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.h
index 04c9805..7f43806 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/PayslipManagementService.h
@@ -1,3 +1,10 @@
+/*
+ * File: PayslipManagementService.h
+ * Description: Handle operations related to employee payslips
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #pragma once
 class PayslipManagementService
 {
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.cpp
index 5fd0d2d..9e0ef96 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.cpp
@@ -1 +1,8 @@
+/*
+ * File: TalentAcquisitionManagementService.cpp
+ * Description: Handle operations related to Talent Acquisition
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include "TalentAcquisitionManagementService.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.h b/Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.h
index 855dda7..ed0dd32 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/TalentAcquisitionManagementService.h
@@ -1,5 +1,11 @@
+/*
+ * File: TalentAcquisitionManagementService.h
+ * Description: Handle operations related to Talent Acquisition
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #pragma once
 class TalentAcquisitionManagementService
 {
 };
-
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.cpp
index f78fe48..8b13b81 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.cpp
@@ -1 +1,8 @@
+/*
+ * File: TeamManagementService.cpp
+ * Description: Handle operations related to Team Management
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include "TeamManagementService.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.h b/Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.h
index 918229d..21275da 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/TeamManagementService.h
@@ -1,3 +1,10 @@
+/*
+ * File: TeamManagementService.h
+ * Description: Handle operations related to Team Management
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #pragma once
 class TeamManagementService
 {
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.cpp b/Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.cpp
index 4649010..bc995f9 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.cpp
@@ -1 +1,8 @@
+/*
+ * File: TicketManagementService.h
+ * Description: Handle operations related to Ticket Management
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #include "TicketManagementService.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.h b/Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.h
index 1db345b..8a38d98 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/services/TicketManagementService.h
@@ -1,3 +1,10 @@
+/*
+ * File: TicketManagementService.h
+ * Description: Handle operations related to Ticket Management
+ * Author: Trenser
+ * Created: 30-Mar-2026
+ */
+
 #pragma once
 class TicketManagementService
 {
diff --git a/Trenser.Zenvy/Trenser.Zenvy/utilities/Enums.h b/Trenser.Zenvy/Trenser.Zenvy/utilities/Enums.h
index ace8792..0d5111b 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/utilities/Enums.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/utilities/Enums.h
@@ -1,3 +1,10 @@
+/*
+ * File: Enums.h
+ * Description: Defines strongly typed enumerations for statuses, types, and designations used across the HRMS system.
+ * Author: Smitha
+ * Created: 01-04-2026
+ */
+
 #pragma once
 
 namespace Enums {
diff --git a/Trenser.Zenvy/Trenser.Zenvy/utilities/InputHelper.h b/Trenser.Zenvy/Trenser.Zenvy/utilities/InputHelper.h
index 559acda..5de0e35 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/utilities/InputHelper.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/utilities/InputHelper.h
@@ -1,5 +1,11 @@
-#pragma once
+/*
+ * File: InputHelper.h
+ * Description: Handles input validation and error handling
+ * Author: Smitha
+ * Created: 08-Apr-2026
+ */
 
+#pragma once
 #include <iostream>
 #include <limits>
 #include <string>
@@ -7,6 +13,15 @@
 
 namespace util
 {
+    /*
+    * Function: read
+    * Description: Reads input from console into a variable of type T.
+    * Parameters:
+    * value - reference to a variable of type T where the input will be stored
+    * Returns:
+    * void - throws runtime_error if input is invalid
+    */
+
     template <typename T>
     inline void read(T& value)
     {
@@ -18,11 +33,27 @@ namespace util
         }
     }
 
+    /*
+    * Function: read
+    * Description: Reads a line of text input from console into a string.
+    * Parameters:
+    * value - reference to a string where the input will be stored
+    * Returns:
+    * void - no return value
+    */
+
     inline void read(std::string& value)
     {
         std::getline(std::cin >> std::ws, value);
     }
 
+    /*
+    * Function: pressEnter
+    * Description: Pauses execution until the user presses Enter.
+    * Parameters: None
+    * Returns: void - no return value
+    */
+
     inline void pressEnter()
     {
 	    system("pause");
diff --git a/Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.cpp b/Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.cpp
index a8e0f7c..ce37ac4 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.cpp
@@ -1,5 +1,20 @@
+/*
+ * File: OutputHelper.cpp
+ * Description: Provides functions to help with console output.
+ * Author: Trenser
+ * Created: 01-04-2026
+*/
+
 #include "outputHelper.h"
 
+/*
+* Function: clear
+* Description: Clears the console screen output.
+* Parameters: None
+* Returns:
+*    void - no return value
+*/
+
 void util::clear()
 {
 	std::cout << "\x1B[2J\x1B[H" << std::flush;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.h b/Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.h
index a40dbaf..08a5b5f 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/utilities/OutputHelper.h
@@ -1,3 +1,10 @@
+/*
+ * File: OutputHelper.h
+ * Description: Provides functions to help with console output.
+ * Author: Trenser
+ * Created: 01-04-2026
+*/
+
 #pragma once
 #include <iostream>
 
diff --git a/Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.cpp b/Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.cpp
index 42d4758..3a51132 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.cpp
@@ -1,18 +1,56 @@
+/*
+ * File: Timestamp.cpp
+ * Description: Provides a utility class for representing and manipulating time values.
+ *              Supports conversion between string and time formats, duration calculations
+ *              (hours, minutes, seconds), date extraction, and comparison operators.
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
+
 #include <sstream>
 #include <iomanip>
 #include <stdexcept>
 #include "Timestamp.h"
 
+/*
+* Function: Timestamp
+* Description: Default constructor that initializes the timestamp to the current system time.
+* Parameters:
+*    None
+* Returns:
+*    Timestamp object
+*/
+
 util::Timestamp::Timestamp()
 {
     m_time = std::time(nullptr);
 }
 
+/*
+* Function: Timestamp (overloaded)
+* Description: Constructor that initializes the timestamp with a given time value.
+* Parameters:
+*    timeValue - time_t value representing a specific time
+* Returns:
+*    Timestamp object
+*/
+
 util::Timestamp::Timestamp(std::time_t timeValue)
 {
     m_time = timeValue;
 }
 
+/*
+* Function: fromString
+* Description: Creates a Timestamp object from a formatted string.
+* Parameters:
+*    timeString - string in the format "YYYY-MM-DD HH:MM:SS"
+* Returns:
+*    Timestamp object representing the parsed time
+* Throws:
+*    runtime_error if the string format is invalid
+*/
+
 util::Timestamp util::Timestamp::fromString(const std::string& timeString)
 {
     std::tm timeStruct = {};
@@ -26,6 +64,15 @@ util::Timestamp util::Timestamp::fromString(const std::string& timeString)
     return Timestamp(parsedTimestamp);
 }
 
+/*
+* Function: toString
+* Description: Converts the Timestamp object into a formatted string.
+* Parameters:
+*    None
+* Returns:
+*    string - formatted as "YYYY-MM-DD HH:MM:SS"
+*/
+
 std::string util::Timestamp::toString() const
 {
     std::tm timeStruct = {};
@@ -35,11 +82,30 @@ std::string util::Timestamp::toString() const
     return outputStream.str();
 }
 
+/*
+* Function: getDurationInSeconds
+* Description: Calculates the duration between two timestamps in seconds.
+* Parameters:
+*    startTimestamp - starting time
+*    endTimestamp - ending time
+* Returns:
+*    double - duration in seconds
+*/
+
 double util::Timestamp::getDurationInSeconds(const Timestamp& startTimestamp, const Timestamp& endTimestamp)
 {
     return std::difftime(endTimestamp.m_time, startTimestamp.m_time);
 }
 
+/*
+* Function: getDateAsInt
+* Description: Returns the date portion of the timestamp as an integer in YYYYMMDD format.
+* Parameters:
+*    None
+* Returns:
+*    int - date as YYYYMMDD
+*/
+
 int util::Timestamp::getDateAsInt() const
 {
     std::tm timeStruct{};
@@ -50,36 +116,101 @@ int util::Timestamp::getDateAsInt() const
     return year * 10000 + month * 100 + day;
 }
 
+/*
+* Function: getDurationInMinutes
+* Description: Calculates the duration between two timestamps in minutes.
+* Parameters:
+*    startTimestamp - starting time
+*    endTimestamp - ending time
+* Returns:
+*    double - duration in minutes
+*/
+
 double util::Timestamp::getDurationInMinutes(const Timestamp& startTimestamp, const Timestamp& endTimestamp)
 {
     return getDurationInSeconds(startTimestamp, endTimestamp) / 60.0;
 }
 
+/*
+* Function: getDurationInHours
+* Description: Calculates the duration between two timestamps in hours.
+* Parameters:
+*    startTimestamp - starting time
+*    endTimestamp - ending time
+* Returns:
+*    double - duration in hours
+*/
+
 double util::Timestamp::getDurationInHours(const Timestamp& startTimestamp, const Timestamp& endTimestamp)
 {
     return getDurationInSeconds(startTimestamp, endTimestamp) / 3600.0;
 }
 
+/*
+* Function: operator<
+* Description: Compares two timestamps to check if one is earlier than the other.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if current timestamp is earlier
+*/
+
 bool util::Timestamp::operator<(const Timestamp& other) const
 {
     return m_time < other.m_time;
 }
 
+/*
+* Function: operator>
+* Description: Compares two timestamps to check if one is later than the other.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if current timestamp is later
+*/
+
 bool util::Timestamp::operator>(const Timestamp& other) const
 {
     return m_time > other.m_time;
 }
 
+/*
+* Function: operator<=
+* Description: Compares two timestamps to check if one is earlier or equal.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if current timestamp is earlier or equal
+*/
+
 bool util::Timestamp::operator<=(const Timestamp& other) const
 {
     return m_time <= other.m_time;
 }
 
+/*
+* Function: operator>=
+* Description: Compares two timestamps to check if one is later or equal.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if current timestamp is later or equal
+*/
+
 bool util::Timestamp::operator>=(const Timestamp& other) const
 {
     return m_time >= other.m_time;
 }
 
+/*
+* Function: operator==
+* Description: Compares two timestamps for equality.
+* Parameters:
+*    other - Timestamp to compare against
+* Returns:
+*    bool - true if both timestamps are equal
+*/
+
 bool util::Timestamp::operator==(const Timestamp& other) const
 {
     return m_time == other.m_time;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.h b/Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.h
index abbc58f..ace001a 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/utilities/Timestamp.h
@@ -1,3 +1,12 @@
+/*
+ * File: Timestamp.h
+ * Description: Provides a utility class for representing and manipulating time values.
+ *              Supports conversion between string and time formats, duration calculations
+ *              (hours, minutes, seconds), date extraction, and comparison operators.
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
+
 #pragma once
 #include <ctime>
 #include <string>
diff --git a/Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.cpp b/Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.cpp
index 9d14b40..8510bdf 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.cpp
@@ -1,8 +1,24 @@
+/*
+ * File: Validator.cpp
+ * Description: Validates inputs like phone number, email, password
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
+
 #include <string>
 #include <cctype>
 #include "Validator.h"
 #include "ApplicationConfig.h"
 
+ /*
+  * Function: isPhoneNumberValid
+  * Description: Validates whether the given string is a valid phone number.
+  * Parameters:
+  *    phoneNumber - string containing the phone number to validate
+  * Returns:
+  *    bool - true if the phone number is valid (10 digits, all numeric), false otherwise
+  */
+
 bool util::isPhoneNumberValid(const std::string& phoneNumber) {
 	if (phoneNumber.size() != 10)
 	{
@@ -16,6 +32,15 @@ bool util::isPhoneNumberValid(const std::string& phoneNumber) {
 	);
 }
 
+/*
+ * Function: isEmailValid
+ * Description: Validates whether the given string is a properly formatted email address.
+ * Parameters:
+ *    email - string containing the email address to validate
+ * Returns:
+ *    bool - true if the email contains exactly one '@' character and is not at the start or end, false otherwise
+ */
+
 bool util::isEmailValid(const std::string& email) {
 	size_t index = email.find('@');
 	if (index == std::string::npos) return false;
@@ -30,6 +55,19 @@ bool util::isEmailValid(const std::string& email) {
 	return true;
 }
 
+/*
+ * Function: isPasswordValid
+ * Description: Validates whether the given string meets password requirements.
+ * Parameters:
+ *    password - string containing the password to validate
+ * Returns:
+ *    bool - true if the password is valid, false otherwise
+ * Notes:
+ *    - Must not equal the default password
+ *    - Must be at least 8 characters long
+ *    - Must contain at least one uppercase letter, one lowercase letter, one digit, and one special character
+ *    - Must not contain whitespace
+ */
 
 bool util::isPasswordValid(const std::string& password)
 {
diff --git a/Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.h b/Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.h
index fbdf962..3710604 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/utilities/Validator.h
@@ -1,3 +1,10 @@
+/*
+ * File: Validator.h
+ * Description: Validates inputs like phone number, email, password
+ * Author: Trenser
+ * Created: 01-Apr-2026
+ */
+
 #pragma once
 #include<string>
 #include<algorithm>
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.cpp b/Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.cpp
index ecad349..91a2445 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.cpp
@@ -1,8 +1,24 @@
+/*
+ * File: AdminMenu.cpp
+ * Description: Handles user-related operations such as creation, authentication, and validation.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #include <iostream>
 #include "AdminMenu.h"
 #include"InputHelper.h"
 #include"OutputHelper.h"
 
+ /*
+  * Function: AdminMenu::run
+  * Description: Starts and manages the administrator menu loop. Continuously displays
+  *              options to the administrator until logout is selected or an exception occurs.
+  * Parameters:
+  *    None
+  * Returns:
+  *    None
+  */
 void AdminMenu::run()
 {
 	bool isMenuActive = true;
@@ -27,6 +43,15 @@ void AdminMenu::run()
 	}
 }
 
+/*
+ * Function: AdminMenu::handleOperation
+ * Description: Processes the administrator’s menu choice and executes the corresponding action.
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the administrator chooses to logout
+ */
 bool AdminMenu::handleOperation(int choice)
 {
 	switch (choice)
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.h b/Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.h
index dab23c5..ed6a48b 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/AdminMenu.h
@@ -1,3 +1,10 @@
+/*
+ * File: AdminMenu.h
+ * Description: Declaration of the AdminMenu class and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #pragma once
 #include<memory>
 #include"ZenvyController.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/EmployeeMenu.cpp b/Trenser.Zenvy/Trenser.Zenvy/views/EmployeeMenu.cpp
index 99e3bc0..4a0dd07 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/EmployeeMenu.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/EmployeeMenu.cpp
@@ -1,8 +1,23 @@
+/*
+ * File: EmployeeMenu.cpp
+ * Description: Implements the EmployeeMenu class functions including menu loop and operation handling.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #include <iostream>
 #include "EmployeeMenu.h"
 #include"InputHelper.h"
 #include"OutputHelper.h"
 
+ /*
+  * Function: EmployeeMenu::run
+  * Description: Starts the employee menu loop and displays available options until logout is selected
+  * Parameters:
+  *    None
+  * Returns:
+  *    None
+  */
 void EmployeeMenu::run()
 {
 	bool isMenuActive = true;
@@ -27,6 +42,15 @@ void EmployeeMenu::run()
 	}
 }
 
+/*
+ * Function: EmployeeMenu::handleOperation
+ * Description: Handles the employee’s menu choice and executes the corresponding action
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the employee chooses to logout
+ */
 bool EmployeeMenu::handleOperation(int choice)
 {
 	switch (choice)
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/EmployeeMenu.h b/Trenser.Zenvy/Trenser.Zenvy/views/EmployeeMenu.h
index f082b66..8611935 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/EmployeeMenu.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/EmployeeMenu.h
@@ -1,3 +1,10 @@
+/*
+ * File: EmployeeMenu.h
+ * Description: Declaration of the EmployeeMenu class and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #pragma once
 #include<memory>
 #include"ZenvyController.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/FinanceExecutiveMenu.cpp b/Trenser.Zenvy/Trenser.Zenvy/views/FinanceExecutiveMenu.cpp
index 081d281..4503969 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/FinanceExecutiveMenu.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/FinanceExecutiveMenu.cpp
@@ -1,8 +1,23 @@
+/*
+ * File: FinanceExecutiveMenu.cpp
+ * Description: Implements the FinanceExecutiveMenu class functions including menu loop and operation handling.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #include <iostream>
 #include "FinanceExecutiveMenu.h"
 #include"InputHelper.h"
 #include"OutputHelper.h"
 
+/*
+ * Function: FinanceExecutiveMenu::run
+ * Description: Starts the finance executive menu loop and displays available options until logout is selected
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
 void FinanceExecutiveMenu::run()
 {
 	bool isMenuActive = true;
@@ -27,6 +42,15 @@ void FinanceExecutiveMenu::run()
 	}
 }
 
+/*
+ * Function: FinanceExecutiveMenu::handleOperation
+ * Description: Handles the finance executive’s menu choice and executes the corresponding action
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the finance executive chooses to logout
+ */
 bool FinanceExecutiveMenu::handleOperation(int choice)
 {
 	switch (choice)
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/FinanceExecutiveMenu.h b/Trenser.Zenvy/Trenser.Zenvy/views/FinanceExecutiveMenu.h
index 825322f..d1c4d77 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/FinanceExecutiveMenu.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/FinanceExecutiveMenu.h
@@ -1,3 +1,10 @@
+/*
+ * File: FinanceExecutiveMenu.h
+ * Description: Declaration of the FinanceExecutiveMenu class and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #pragma once
 #include<memory>
 #include"ZenvyController.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/HRManagerMenu.cpp b/Trenser.Zenvy/Trenser.Zenvy/views/HRManagerMenu.cpp
index 7bf812c..dff562a 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/HRManagerMenu.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/HRManagerMenu.cpp
@@ -1,8 +1,23 @@
+/*
+ * File: HRManagerMenu.cpp
+ * Description: Implements the HRManagerMenu class functions including menu loop and operation handling.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #include <iostream>
 #include "HRManagerMenu.h"
 #include"InputHelper.h"
 #include"OutputHelper.h"
 
+/*
+ * Function: HRManagerMenu::run
+ * Description: Starts the HR manager menu loop and displays available options until logout is selected
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
 void HRManagerMenu::run()
 {
 	bool isMenuActive = true;
@@ -27,6 +42,15 @@ void HRManagerMenu::run()
 	}
 }
 
+/*
+ * Function: HRManagerMenu::handleOperation
+ * Description: Handles the HR manager’s menu choice and executes the corresponding action
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the HR manager chooses to logout
+ */
 bool HRManagerMenu::handleOperation(int choice)
 {
 	switch (choice)
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/HRManagerMenu.h b/Trenser.Zenvy/Trenser.Zenvy/views/HRManagerMenu.h
index 05e1f41..a3c1ff1 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/HRManagerMenu.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/HRManagerMenu.h
@@ -1,3 +1,10 @@
+/*
+ * File: HRManagerMenu.h
+ * Description: Declaration of the EmployeeMenu class and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #pragma once
 #include<memory>
 #include"ZenvyController.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/ITExecutiveMenu.cpp b/Trenser.Zenvy/Trenser.Zenvy/views/ITExecutiveMenu.cpp
index 836ca39..b415d57 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/ITExecutiveMenu.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/ITExecutiveMenu.cpp
@@ -1,8 +1,23 @@
+/*
+ * File: ITExecutiveMenu.cpp
+ * Description: Implements the ITExecutiveMenu class functions including menu loop and operation handling.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #include <iostream>
 #include "ITExecutiveMenu.h"
 #include"InputHelper.h"
 #include"OutputHelper.h"
 
+/*
+ * Function: ITExecutiveMenu::run
+ * Description: Starts the IT executive menu loop and displays available options until logout is selected
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
 void ITExecutiveMenu::run()
 {
 	bool isMenuActive = true;
@@ -27,6 +42,15 @@ void ITExecutiveMenu::run()
 	}
 }
 
+/*
+ * Function: ITExecutiveMenu::handleOperation
+ * Description: Handles the IT executive’s menu choice and executes the corresponding action
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the IT executive chooses to logout
+ */
 bool ITExecutiveMenu::handleOperation(int choice)
 {
 	switch (choice)
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/ITExecutiveMenu.h b/Trenser.Zenvy/Trenser.Zenvy/views/ITExecutiveMenu.h
index 1c5f060..7447643 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/ITExecutiveMenu.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/ITExecutiveMenu.h
@@ -1,3 +1,10 @@
+/*
+ * File: ITExecutiveMenu.h
+ * Description: Declaration of the ITExecutiveMenu class and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #pragma once
 #include<memory>
 #include"ZenvyController.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/TalentExecutiveMenu.cpp b/Trenser.Zenvy/Trenser.Zenvy/views/TalentExecutiveMenu.cpp
index 45fbfba..250da5a 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/TalentExecutiveMenu.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/TalentExecutiveMenu.cpp
@@ -1,8 +1,23 @@
+/*
+ * File: TalentExecutiveMenu.cpp
+ * Description: Implements the TalentExecutiveMenu class functions including menu loop and operation handling.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #include <iostream>
 #include "TalentExecutiveMenu.h"
 #include"InputHelper.h"
 #include"OutputHelper.h"
 
+/*
+ * Function: TalentExecutiveMenu::run
+ * Description: Starts the talent executive menu loop and displays available options until logout is selected
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
 void TalentExecutiveMenu::run()
 {
 	bool isMenuActive = true;
@@ -27,6 +42,15 @@ void TalentExecutiveMenu::run()
 	}
 }
 
+/*
+ * Function: TalentExecutiveMenu::handleOperation
+ * Description: Handles the talent executive’s menu choice and executes the corresponding action
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the talent executive chooses to logout
+ */
 bool TalentExecutiveMenu::handleOperation(int choice)
 {
 	switch (choice)
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/TalentExecutiveMenu.h b/Trenser.Zenvy/Trenser.Zenvy/views/TalentExecutiveMenu.h
index a258eaf..7cbee73 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/TalentExecutiveMenu.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/TalentExecutiveMenu.h
@@ -1,3 +1,10 @@
+/*
+ * File: TalentExecutiveMenu.h
+ * Description: Declaration of the TalentExecutiveMenu class and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #pragma once
 #include<memory>
 #include"ZenvyController.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/TeamExecutiveMenu.cpp b/Trenser.Zenvy/Trenser.Zenvy/views/TeamExecutiveMenu.cpp
index 12c300b..97401b2 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/TeamExecutiveMenu.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/TeamExecutiveMenu.cpp
@@ -1,8 +1,23 @@
+/*
+ * File: TeamExecutiveMenu.cpp
+ * Description: Implements the TeamExecutiveMenu class functions including menu loop and operation handling.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #include <iostream>
 #include "TeamExecutiveMenu.h"
 #include"InputHelper.h"
 #include"OutputHelper.h"
 
+/*
+ * Function: TeamExecutiveMenu::run
+ * Description: Starts the team executive menu loop and displays available options until logout is selected
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
 void TeamExecutiveMenu::run()
 {
 	bool isMenuActive = true;
@@ -27,6 +42,15 @@ void TeamExecutiveMenu::run()
 	}
 }
 
+/*
+ * Function: TeamExecutiveMenu::handleOperation
+ * Description: Handles the team executive’s menu choice and executes the corresponding action
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the team executive chooses to logout
+ */
 bool TeamExecutiveMenu::handleOperation(int choice)
 {
 	switch (choice)
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/TeamExecutiveMenu.h b/Trenser.Zenvy/Trenser.Zenvy/views/TeamExecutiveMenu.h
index 4b5181d..3f6d5f3 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/TeamExecutiveMenu.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/TeamExecutiveMenu.h
@@ -1,3 +1,10 @@
+/*
+ * File: TeamExecutiveMenu.h
+ * Description: Declaration of the TeamExecutiveMenu and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #pragma once
 #include<memory>
 #include"ZenvyController.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/TeamLeadMenu.cpp b/Trenser.Zenvy/Trenser.Zenvy/views/TeamLeadMenu.cpp
index 4204fb7..31143d1 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/TeamLeadMenu.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/TeamLeadMenu.cpp
@@ -1,8 +1,23 @@
+/*
+ * File: TeamLeadMenu.cpp
+ * Description: Implements the TeamLeadMenu class functions including menu loop and operation handling.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #include <iostream>
 #include "TeamLeadMenu.h"
 #include"InputHelper.h"
 #include"OutputHelper.h"
 
+/*
+ * Function: TeamLeadMenu::run
+ * Description: Starts the team lead menu loop and displays available options until logout is selected
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
 void TeamLeadMenu::run()
 {
 	bool isMenuActive = true;
@@ -27,6 +42,15 @@ void TeamLeadMenu::run()
 	}
 }
 
+/*
+ * Function: TeamLeadMenu::handleOperation
+ * Description: Handles the team lead’s menu choice and executes the corresponding action
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the menu should remain active
+ *    false - if the team lead chooses to logout
+ */
 bool TeamLeadMenu::handleOperation(int choice)
 {
 	switch (choice)
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/TeamLeadMenu.h b/Trenser.Zenvy/Trenser.Zenvy/views/TeamLeadMenu.h
index e1bd45b..d2057aa 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/TeamLeadMenu.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/TeamLeadMenu.h
@@ -1,3 +1,10 @@
+/*
+ * File: TeamLeadMenu.h
+ * Description: Declaration of the TeamLeadMenu class and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #pragma once
 #include<memory>
 #include"ZenvyController.h"
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/UserInterface.cpp b/Trenser.Zenvy/Trenser.Zenvy/views/UserInterface.cpp
index adea852..1f08092 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/UserInterface.cpp
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/UserInterface.cpp
@@ -1,3 +1,10 @@
+/*
+ * File: UserInterface.cpp
+ * Description: Implements the UserInterface class functions including menu loop, login handling, and routing to appropriate role-based menus.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #include <iostream>
 #include <utility>
 #include <memory>
@@ -16,6 +23,14 @@
 #include "OutputHelper.h"
 #include "Validator.h"
 
+/*
+ * Function: UserInterface::run
+ * Description: Starts the user interface loop and displays login/exit options until exit is selected
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
 void UserInterface::run()
 {
 	bool isMenuActive = true;
@@ -40,6 +55,15 @@ void UserInterface::run()
 	}
 }
 
+/*
+ * Function: UserInterface::handleOperation
+ * Description: Handles the user’s menu choice and executes the corresponding action
+ * Parameters:
+ *    choice - integer representing the selected menu option
+ * Returns:
+ *    true  - if the interface should remain active
+ *    false - if the user chooses to exit
+ */
 bool UserInterface::handleOperation(int choice)
 {
 	switch (choice)
@@ -57,6 +81,14 @@ bool UserInterface::handleOperation(int choice)
 	return true;
 }
 
+/*
+ * Function: UserInterface::login
+ * Description: Authenticates the user by email and password, validates login status, and routes to the appropriate menu
+ * Parameters:
+ *    None
+ * Returns:
+ *    None
+ */
 void UserInterface::login()
 {
     std::string email, password;
diff --git a/Trenser.Zenvy/Trenser.Zenvy/views/UserInterface.h b/Trenser.Zenvy/Trenser.Zenvy/views/UserInterface.h
index c346301..cf9c924 100644
--- a/Trenser.Zenvy/Trenser.Zenvy/views/UserInterface.h
+++ b/Trenser.Zenvy/Trenser.Zenvy/views/UserInterface.h
@@ -1,3 +1,10 @@
+/*
+ * File: UserInterface.h
+ * Description: Declaration of the UserInterface class and related functions.
+ * Author: Trenser
+ * Created: 02-Apr-2026
+ */
+
 #pragma once
 #include <memory>
 #include <utility>