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+# SQL Injection Prevention Web Application
+
+This documentation provides an overview of a web application designed to demonstrate and prevent SQL injection vulnerabilities.
+
+## Overview
+
+The application is a simple student/course management system with the following key features:
+
+- User authentication
+- Student management (view/add students)
+- Course management (view/add courses)  
+- Course evaluations
+- Course reviews
+
+The code is structured as a Python web application using the aiohttp framework.
+
+## Key Components
+
+### Application Setup (app.py)
+
+- Initializes the aiohttp web application
+- Sets up database and Redis connections
+- Configures routes, middlewares, and Jinja2 templating
+
+### Views (views.py)
+
+Contains the main request handlers:
+
+- index - Login page
+- students - List/add students
+- courses - List/add courses  
+- evaluate - Submit course evaluations
+- review - Submit course reviews
+
+### Data Access Objects (dao/)
+
+Contain database query logic for different entities:
+
+- student.py
+- course.py
+- mark.py
+- review.py
+- user.py
+
+### Database Service (services/db.py)
+
+Sets up the PostgreSQL database connection pool
+
+### Authentication (utils/auth.py)
+
+Handles user authentication and authorization
+
+### Input Validation (schema/forms.py)
+
+Defines schemas for validating form inputs
+
+## Security Considerations
+
+- Uses parameterized queries to prevent SQL injection
+- Input validation and sanitization  
+- CSRF protection
+- Authentication required for sensitive operations
+
+## Usage
+
+The application can be run locally for testing and demonstration purposes. Proper security hardening would be required before any production use.