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Chapter 4: System Analysis ​

4.1 Functional Requirements ​

4.1.1. User Management System ​

1.1 User Registration and Authentication ​

  • FR-1.1: System shall allow users to create accounts using email, username, and password.
  • FR-1.2: System shall support social login (Google, GitHub) for quick registration.
  • FR-1.3: System shall implement email verification for new accounts.
  • FR-1.4: System shall provide secure password reset functionality via email.
  • FR-1.5: System shall enforce strong password policies (minimum 8 characters, special characters).
  • FR-1.6: System shall implement two-factor authentication (2FA) as an additional security feature.

Optional Feature

Two-factor authentication (2FA).

1.2 User Profiles and Settings ​

  • FR-1.7: System shall allow users to create and edit personal profiles with avatar, bio, and learning goals.
  • FR-1.8: System shall allow users to select preferred programming languages (Python, JavaScript, etc.).
  • FR-1.9: System shall support multiple language interface options (Arabic, English).

1.3 User Roles and Permissions ​

  • FR-1.10: System shall support multiple user roles:
    • Learner: Basic access to courses and exercises
    • Mentor: Access to mentoring tools and student progress
    • Admin: Full system administration capabilities
  • FR-1.11: System shall implement role-based access control (RBAC).
  • FR-1.12: System shall allow role upgrades through application process.

4.1.2. Learning Content Management ​

2.1 Course Structure ​

  • FR-2.1: System shall organize content in hierarchical structure: Courses → Modules → Lessons → Exercises.
  • FR-2.2: System shall support prerequisite relationships between courses and modules.
  • FR-2.3: System shall allow multiple learning paths for different skill levels.
  • FR-2.4: System shall support content versioning and updates.

2.2 Lesson Delivery ​

  • FR-2.5: System shall support multiple content types:

    • Interactive Chat Learning
    • Video tutorials (embedded or hosted)
    • Interactive coding exercises
    • Quizzes and assessments

  • FR-2.6: System shall provide estimated completion time for each lesson.

  • FR-2.7: System shall track lesson completion status.

  • FR-2.8: System shall support bookmarking and note-taking.

2.3 Code Editor Integration ​

  • FR-2.9: System shall embed Monaco Editor for code writing.
  • FR-2.10: System shall support syntax highlighting for Python, JavaScript and more.
  • FR-2.11: System shall provide auto-completion and error detection.
  • FR-2.12: System shall support code formatting and linting.

4.1.3. Interactive Code Execution ​

3.1 Sandbox Environment ​

  • FR-3.1: System shall execute user code in isolated sandbox environments.
  • FR-3.2: System shall support Python and JavaScript code execution.
  • FR-3.3: System shall provide real-time execution feedback.
  • FR-3.4: System shall implement timeout mechanisms for long-running code.

3.2 Exercise Types ​

  • FR-3.5: System shall support multiple exercise formats:

    • Fill-in-the-blank code completion
    • Function implementation challenges
    • Debugging exercises
    • Project-based assignments

  • FR-3.6: System shall provide automated test case validation.

  • FR-3.7: System shall show expected vs. actual output comparison.

  • FR-3.8: System shall support custom test cases for educators.

4.1.4. Gamification System ​

4.1 Progress Tracking ​

  • FR-4.1: System shall track user progress through courses and modules.
  • FR-4.2: System shall calculate completion percentages.
  • FR-4.3: System shall maintain learning streak counters.
  • FR-4.4: System shall provide detailed progress analytics.

4.2 Experience Points (XP) System ​

  • FR-4.5: System shall award XP for completed lessons, exercises, and achievements.
  • FR-4.6: System shall implement level system based on total XP.
  • FR-4.7: System shall provide XP bonuses for streak maintenance.
  • FR-4.8: System shall display XP leaderboards (global).

4.3 Achievements and Badges ​

  • FR-4.9: System shall award badges for specific accomplishments:

    • Completion badges (finish courses, modules)
    • Skill badges (master specific concepts)
    • Social badges (help others, participate in community)
    • Special badges (streak milestones, perfect scores)

  • FR-4.10: System shall display earned badges on user profiles.

  • FR-4.11: System shall notify users when badges are earned.

4.4 Daily Goals and Challenges ​

  • FR-4.12: System shall allow users to set daily learning goals.
  • FR-4.13: System shall provide daily coding challenges.
  • FR-4.14: System shall send reminders for goal completion.
  • FR-4.15: System shall celebrate goal achievement.

4.1.5. AI-Powered Features ​

5.1 Intelligent Hints ​

  • FR-5.1: System shall provide context-aware hints when users are stuck.
  • FR-5.2: System shall integrate with OpenRouter/Gemini API for AI responses.
  • FR-5.3: System shall offer graduated hint levels (gentle nudge → specific guidance).
  • FR-5.4: System shall learn from hint usage patterns.

5.2 Personalized Learning ​

  • FR-5.5: System shall analyze user performance to suggest next topics.
  • FR-5.6: System shall adapt exercise difficulty based on user ability.
  • FR-5.7: System shall recommend review sessions for weak areas.
  • FR-5.8: System shall provide personalized learning paths.

4.1.6. Social Features ​

6.1 Competitive Features ​

  • FR-6.9: System shall host coding competitions and challenges.
  • FR-6.10: System shall maintain various leaderboards (weekly, monthly, all-time).
  • FR-6.12: System shall provide achievement showcases.

4.1.7. Assessment and Certification ​

7.1 Skill Assessment ​

  • FR-7.1: System shall provide comprehensive skill assessments.
  • FR-7.2: System shall generate skill reports showing strengths/weaknesses.
  • FR-7.3: System shall track skill progression over time.
  • FR-7.4: System shall provide benchmark comparisons.

7.2 Certification ​

  • FR-7.5: System shall issue completion certificates for courses.
  • FR-7.6: System shall provide skill-based certificates.
  • FR-7.7: System shall maintain certificate verification system.
  • FR-7.8: System shall support certificate sharing on social platforms.

4.1.8. Content Creation and Management ​

8.1 Educator Tools ​

  • FR-8.1: System shall provide course creation wizard for educators.
  • FR-8.2: System shall support rich text editor for lesson content.
  • FR-8.3: System shall enable exercise creation with custom test cases.
  • FR-8.4: System shall provide content preview and testing capabilities.

8.2 Content Review and Quality ​

  • FR-8.5: System shall implement content review workflow.
  • FR-8.6: System shall allow community rating and feedback on courses.
  • FR-8.7: System shall provide content analytics for educators.
  • FR-8.8: System shall support content versioning and rollback.

4.1.9. Mobile and Accessibility ​

9.1 Mobile Support ​

  • FR-9.1: System shall provide responsive web design for mobile devices.
  • FR-9.2: System shall support touch-friendly code editing on tablets.
  • FR-9.3: System shall enable offline content consumption where possible.
  • FR-9.4: System shall provide mobile-optimized exercise formats.

9.2 Accessibility Features ​

  • FR-9.5: System shall support screen reader compatibility.
  • FR-9.6: System shall provide keyboard navigation for all features.
  • FR-9.7: System shall offer high contrast and color-blind friendly themes.
  • FR-9.8: System shall support text-to-speech for lesson content.

4.1.10. Integration and API ​

10.1 External Integrations ​

  • FR-10.1: System shall integrate with GitHub for project portfolio.
  • FR-10.2: System shall support LMS integration (Canvas, Moodle).
  • FR-10.3: System shall provide calendar integration for scheduling.
  • FR-10.4: System shall support single sign-on (SSO) for institutions.

10.2 API Capabilities ​

  • FR-10.5: System shall provide RESTful API for third-party integrations.
  • FR-10.6: System shall support webhook notifications for events.
  • FR-10.7: System shall provide data export capabilities.
  • FR-10.8: System shall maintain API documentation and versioning.

Summary ​

This functional requirements specification defines the core features and capabilities needed for the DuoCodo programming education platform. These requirements address:

  • User Management: Comprehensive user system with roles and permissions
  • Learning Delivery: Multi-format content with interactive code execution
  • Gamification: Engaging progress tracking and achievement systems
  • AI Features: Intelligent hints and personalized learning paths
  • Social Learning: Community features and mentoring capabilities
  • Assessment: Skill evaluation and certification systems
  • Content Management: Tools for educators and content creators
  • Accessibility: Mobile support and inclusive design features
  • Integration: API and third-party service connectivity

The requirements are prioritized based on stakeholder feedback and technical feasibility, providing a roadmap for development phases and feature implementation.