Functional requirements of Digital Library System with non-functional

Functional Requirements

1. User Authentication and Authorization
   • Allow users (e.g., library members, administrators, librarians) to create accounts, log in, and manage their profiles.
   • Implement role-based access control to manage permissions based on user roles (e.g., admin, librarian, member).
2. Catalog Management
   • Enable librarians to add, update, and manage digital library resources, including books, journals, articles, and multimedia materials.
   • Support metadata management for resources, including titles, authors, publication dates, and keywords.
3. Search and Retrieval
   • Provide search functionality for users to find resources based on various criteria (e.g., title, author, subject, keyword).
   • Support advanced search options, such as filters and sorting, to refine search results.
4. Resource Access and Download
   • Allow users to access and download digital resources, including eBooks, PDFs, and multimedia files.
   • Provide options for users to view resources online or offline, based on availability and user permissions.
5. User Management and Membership
   • Manage user accounts, including registration, profile updates, and membership status.
   • Provide tools for librarians to track user activity, including borrowing history and resource usage.
6. Digital Rights Management (DRM)
   • Implement DRM features to protect digital resources from unauthorized access and distribution.
   • Manage access rights and permissions for different types of resources and user roles.
7. Resource Checkout and Return
   • Support a checkout system for users to borrow digital resources, including setting due dates and handling renewals.
   • Manage returns and check-ins of digital resources, including tracking overdue items and sending reminders.
8. Reviews and Ratings
   • Allow users to rate and review digital resources, including books and articles.
   • Provide tools for librarians to moderate and manage user reviews and ratings.
9. Notifications and Alerts
   • Send notifications to users about resource availability, due dates, overdue items, and system updates via email, SMS, or in-app messages.
   • Allow users to configure notification preferences and alert settings.
10. Reporting and Analytics
    • Generate reports on resource usage, user activity, and system performance.
    • Provide analytics on popular resources, borrowing trends, and user engagement for decision-making.
11. Integration with External Systems
    • Integrate with external systems such as authentication services, payment gateways, and other library networks.
    • Support API integration for extending system capabilities and connecting with third-party services.
12. User Interface and Experience
    • Provide an intuitive and user-friendly interface for accessing digital resources, managing accounts, and performing searches.
    • Ensure ease of navigation and accessibility features for users with different needs and abilities.
13. Documentation and Support
    • Provide user manuals, help guides, and support resources for troubleshooting and training.
    • Offer technical support for system issues and user assistance.

Non-Functional Requirements

1. Performance
   • Ensure quick load times for resource searches, downloads, and access.
   • Handle high volumes of concurrent users and resource requests efficiently.
2. Scalability
   • Support the addition of new resources, users, and features as the system grows.
   • Scale to accommodate increasing data volumes, user traffic, and resource interactions.
3. Reliability
   • Ensure high system availability with minimal downtime, especially during peak usage periods.
   • Implement backup and recovery procedures to protect data and ensure business continuity.
4. Security
   • Protect user data and digital resources with encryption and secure access controls.
   • Implement measures to prevent unauthorized access, data breaches, and piracy.
5. Usability
   • Provide an intuitive and user-friendly interface for resource management, search, and access.
   • Ensure ease of navigation and accessibility features for users with different needs and abilities.
6. Maintainability
   • Design the system for easy updates, maintenance, and troubleshooting.
   • Provide clear documentation for system administrators, developers, and support personnel.
7. Compatibility
   • Ensure compatibility with various devices (e.g., desktops, tablets, smartphones) and web browsers.
   • Support integration with different operating systems and platforms for a seamless user experience.
8. Data Integrity
   • Ensure accuracy and consistency of resource metadata, user information, and system records.
   • Implement validation checks and error-handling mechanisms to maintain data quality.
9. Support and Documentation
   • Provide comprehensive user manuals, help guides, and support resources for troubleshooting and training.
   • Offer technical support for system issues and maintenance.
10. Auditability
    • Maintain logs of system activity, user actions, and resource interactions for auditing purposes.
    • Provide audit trails for resource management, user activity, and system changes.