Chapter 5: System Architecture

5.4 Sequence Diagrams

Sequence diagrams are a type of interaction diagram that show how objects operate with one another and in what order. They are used to visualize the sequence of messages exchanged between objects in a particular scenario of a use case.

Administrator Use Cases

Integrate External API

Figure 5.38: Integrate External API — Figure 5.38: Integrate External API Sequence Diagram

Backup

Figure 5.39: Backup — Figure 5.39: Backup Sequence Diagram

Content Creator Use Cases

Create Coding Exercise

Figure 5.16: Create Coding Exercise — Figure 5.16: Create Coding Exercise Sequence Diagram

Validate Exercise

Figure 5.17: Validate Exercise — Figure 5.17: Validate Exercise Sequence Diagram

Design Learning Path

Figure 5.18: Design Learning Path — Figure 5.18: Design Learning Path Sequence Diagram

Create Interactive Walkthrough

Figure 5.19: Create Interactive Walkthrough — Figure 5.19: Create Interactive Walkthrough Sequence Diagram

Learner Use Cases

Authentication & Account Management

Register Account

Figure 5.2: Register Account — Figure 5.2: Register Account Sequence Diagram

Figure 5.3: Login — Figure 5.3: Login Sequence Diagram

Logout

Figure 5.4: Logout — Figure 5.4: Logout Sequence Diagram

Reset Password

Figure 5.5: Reset Password — Figure 5.5: Reset Password Sequence Diagram

Change Email

Figure 5.6: Change Email — Figure 5.6: Change Email Sequence Diagram

Enable 2FA

Figure 5.7: Enable 2FA — Figure 5.7: Enable 2FA Sequence Diagram

Edit Profile

Figure 5.8: Edit Profile Sequence Diagram

Notifications

Figure 5.9: Notifications — Figure 5.9: Notifications Sequence Diagram

Learning & Courses

Set Learning Goals

Figure 5.10: Set Learning Goals — Figure 5.10: Set Learning Goals Sequence Diagram

View Lesson Content

Figure 5.11: View Lesson Content — Figure 5.11: View Lesson Content Sequence Diagram

Choose Learning Path

Figure 5.20: Choose Learning Path — Figure 5.20: Choose Learning Path Sequence Diagram

Search Courses

Figure 5.21: Search Courses Sequence Diagram

Join Course

Figure 5.28: Join Course — Figure 5.28: Join Course Sequence Diagram

Exercises & Practice

Complete Exercise

Figure 5.12: Complete Exercise — Figure 5.12: Complete Exercise Sequence Diagram

Review Exercise

Figure 5.13: Review Exercise — Figure 5.13: Review Exercise Sequence Diagram

Practice Code

Figure 5.14: Practice Code — Figure 5.14: Practice Code Sequence Diagram

Receive Hints

Figure 5.15: Receive Hints — Figure 5.15: Receive Hints Sequence Diagram

Quizzes & Assessments

Take Quiz

Figure 5.25: Take Quiz — Figure 5.25: Take Quiz Sequence Diagram

View Quiz Results

Figure 5.26: View Quiz Results — Figure 5.26: View Quiz Results Sequence Diagram

Progress & Rewards

Track Progress

Figure 5.22: Track Progress — Figure 5.22: Track Progress Sequence Diagram

Earn XP

Figure 5.23: Earn XP — Figure 5.23: Earn XP Sequence Diagram

Redeem Reward

Figure 5.24: Redeem Reward — Figure 5.24: Redeem Reward Sequence Diagram

View Leaderboard

Figure 5.33: View Leaderboard — Figure 5.33: View Leaderboard Sequence Diagram

Certification & Achievements

Complete Certification Track

Figure 5.27: Complete Certification Track — Figure 5.27: Complete Certification Track Sequence Diagram

View Certificate

Figure 5.30: View Certificate — Figure 5.30: View Certificate Sequence Diagram

Figure 5.34: Social Interaction Sequence Diagram

Figure 5.35: Share Progress Sequence Diagram

Invite Friend

Figure 5.36: Invite Friend — Figure 5.36: Invite Friend Sequence Diagram

Post Comment

Figure 5.37: Post Comment — Figure 5.37: Post Comment Sequence Diagram

Resources & Tools

Bookmark

Figure 5.31: Bookmark — Figure 5.31: Bookmark Sequence Diagram

Download Resources

Figure 5.32: Download Resources — Figure 5.32: Download Resources Sequence Diagram

Report Error

Figure 5.40: Report Error — Figure 5.40: Report Error Sequence Diagram

Payment

Manage Payment

Figure 5.29: Manage Payment — Figure 5.29: Manage Payment Sequence Diagram