Entity-relationship diagram modeling an industrial attachment registration system with five core entities: Student, Company, Registration, Supervisor, and Document. Students register for placements at companies through a Registration entity that tracks status, dates, and links to uploaded documents. Companies maintain supervisors who oversee student placements, while departments organize students by faculty. This ERD provides a normalized schema for universities and colleges managing internship workflows, from application through document submission. Fork this diagram on Diagrams.so to customize entity attributes, add evaluation tables, or extend for multi-semester tracking.