Academic Quality Intelligence System (AQIS) ER diagram models a relational database for tracking student performance, attendance, and placement outcomes. The schema connects STUDENTS as the central entity to ATTENDANCE, MARKS, and PLACEMENTS tables via foreign keys, enabling comprehensive academic analytics. This normalized structure supports institutional reporting, predictive analytics for student success, and placement tracking—critical for educational institutions leveraging AWS RDS or DynamoDB. Fork this diagram to customize for your institution's schema, add additional entities like COURSES or FACULTY_ASSIGNMENTS, or export as .drawio to integrate into your database design documentation.