AI Study Scheduler Chen ER diagram models a comprehensive relational schema for adaptive learning management, integrating USER, SUBJECT, TOPIC, STUDY_SESSION, FOCUS_LOG, and EXAM_EVENT entities. Data flows from user interactions through study sessions and focus monitoring into analytics and AI model feedback loops, enabling personalized scheduling and performance prediction. This architecture demonstrates best practices for capturing behavioral telemetry, mastery tracking, and exam preparation workflows in educational SaaS platforms. Fork and customize this diagram on Diagrams.so to adapt the schema for your OCI-hosted learning application, adjusting cardinalities and attributes to match your curriculum model. The FOCUS_LOG entity with keystroke, app-switch, and webcam scoring exemplifies how AI-powered systems capture granular engagement signals for real-time intervention.