Course Prerequisites & Grade Auditing Schema

ER Diagrams · made in Skemio

ER diagram illustrating courses, self-referencing course prerequisites, course sections, enrollments, and grade audits.

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What it shows

Model prerequisite chains as self-referencing directed graphs.
Separate immutable course catalogs from term-specific course sections.
Track student grades with dedicated audit tables to catch unauthorized edits.

The takeaway

Model prerequisites as a self-referencing DAG and enforce an audit trail for all academic grade updates.

#DataModeling
#EdTech
#SQL
#DatabaseArchitecture
#PostgreSQL
#GraphModeling

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