diff --git a/Grade.h b/Grade.h
new file mode 100644
index 0000000..997e24b
--- /dev/null
+++ b/Grade.h
@@ -0,0 +1,20 @@
+#ifndef GRADE_H
+#define GRADE_H
+
+class Grade {
+private:
+    int studentId;
+    int courseId;
+    float value;
+
+public:
+    Grade(int studentId, int courseId, float value);
+
+    int getStudentId() const;
+    int getCourseId() const;
+    float getValue() const;
+
+    void setValue(float value);
+};
+
+#endif
\ No newline at end of file
diff --git a/Professor.cpp b/Professor.cpp
new file mode 100644
index 0000000..2b3b798
--- /dev/null
+++ b/Professor.cpp
@@ -0,0 +1,6 @@
+#include "Professor.h"
+
+Professor::Professor(int id, const std::string& username, const std::string& password)
+    : User(id, username, password) {
+    role = Role::PROF;
+}
\ No newline at end of file
diff --git a/Professor.h b/Professor.h
new file mode 100644
index 0000000..b0eec82
--- /dev/null
+++ b/Professor.h
@@ -0,0 +1,14 @@
+#ifndef PROFESSOR_H
+#define PROFESSOR_H
+
+#include "User.h"
+#include <iostream>
+
+class Professor : public User {
+public:
+    Professor(int id, const std::string& username, const std::string& passwordHash);
+
+    void displayMenu() const override;
+};
+
+#endif
\ No newline at end of file
diff --git a/Student.cpp b/Student.cpp
new file mode 100644
index 0000000..edf96ca
--- /dev/null
+++ b/Student.cpp
@@ -0,0 +1,8 @@
+#include "Student.h"
+
+Student::Student(int id, const std::string& username, const std::string& password, const std::string& email)
+    : User(id, username, password), email(email) {
+    role = Role::STUDENT;
+}
+
+std::string Student::getEmail() const { return email; }
\ No newline at end of file
diff --git a/Student.h b/Student.h
new file mode 100644
index 0000000..a2e7317
--- /dev/null
+++ b/Student.h
@@ -0,0 +1,19 @@
+#ifndef STUDENT_H
+#define STUDENT_H
+
+#include "User.h"
+#include <iostream>
+
+class Student : public User {
+private:
+    std::string email;
+
+public:
+    Student(int id, const std::string& username, const std::string& passwordHash, const std::string& email);
+
+    std::string getEmail() const;
+
+    void displayMenu() const override;
+};
+
+#endif
\ No newline at end of file