Attendance Manager - Shortage Predictor

DA2 C++ Mini Project

Student: Daksh Agarwal
Registration Number: 25BCE5098
Question Number: 6

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📋 Project Description

A class advisor tool to track student attendance, identify shortage students (below 75%), and predict how many consecutive classes a student needs to attend to reach the 75% threshold.

✨ Features

Core Operations

• ➕ Add Student (with duplicate RegNo validation)
• 📝 Mark Attendance for specific date (P/A only)
• 🔍 Search Student (by RegNo or name)
• 🗑️ Delete Student (with confirmation)
• 📄 View All Students

Reports

• 📊 Attendance Percentage per Student
• ⚠️ Shortage Students (Below 75%)
• 📈 Class Average Statistics

Technical Features

• 💾 File persistence (auto save/load)
• ✅ Input validation
• 🎯 OOP Design with proper encapsulation

🏗️ OOP Structure

┌─────────────────────────────────────┐
│           Student Class             │
├─────────────────────────────────────┤
│ - regNo: string                     │
│ - name: string                      │
│ - attendanceRecords: vector         │
├─────────────────────────────────────┤
│ + markAttendance()                  │
│ + calculateAttendancePercentage()   │
│ + display()                         │
│ + serialize() / deserialize()       │
└─────────────────────────────────────┘

┌─────────────────────────────────────┐
│       AttendanceManager Class       │
├─────────────────────────────────────┤
│ - students: vector<Student>         │
│ - dataFile: string                  │
├─────────────────────────────────────┤
│ + addStudent()                      │
│ + markAttendanceForDate()           │
│ + reportShortageStudents()          │
│ + reportClassAverage()              │
│ + saveToFile() / loadFromFile()     │
└─────────────────────────────────────┘

🚀 How to Compile & Run

cd src
g++ -std=c++17 -o attendance_manager.exe main.cpp
./attendance_manager.exe

📁 File Format

Data is stored in attendance_data.txt:

RegNo|Name|Date1:P,Date2:A,Date3:P,...

📝 Documentation

See DOCUMENTATION.md for full project documentation including:

• Problem Statement
• Class Structure Tables
• Test Cases
• Screenshots

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© 2026 Daksh Agarwal | VIT University