Secure Document Management System (SDMS)

Reference implementation for the 5CM505 Software Engineering coursework, Phase 3. Implements the class model defined in the SDS and three of the five design patterns: Proxy, Singleton, and Factory Method.

Repository layout

sdms-repo/
├── src/sdms/
│   ├── models/        # Domain classes (User, Session, Document, AuditLog, Report)
│   ├── patterns/      # SecurityProxy, AuditLogger singleton, UserFactory
│   └── services/      # DocumentService interface, OTPService
├── tests/             # pytest unit tests
├── docs/              # Coding conventions and design notes
└── README.md

Running

python -m pip install -r requirements.txt
python -m pytest tests/

Authors

5CM505 Software Engineering group coursework, 2025-26.

• Nefeli Vasiadi Papalexi (Lead Developer)
• Konstantinos Tserkezidis
• Sanjana Kumar