Question
Map the complete object class model designed for the Learning Management System (LMS) in Question 3 into a 3NF-compliant Relational Database Management System (RDBMS) table schema. Clearly document the mapping patterns applied to transform object characteristics into flat relational structures. Explicitly specify your strategy for representing inheritance hierarchies (e.g., Table-Per-Class vs. Single-Table inheritance), resolving many-to-many (M:N) associations, and preserving referential integrity constraints via Primary Key (PK) and Foreign Key (FK) mechanics.
Answer :
Word Count : 560
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The object class model of a Learning Management System (LMS) can be mapped into a 3NF-compliant relational database by converting each persistent class into a table, object attributes into columns, and associations into primary and foreign key relationships. The mapping must eliminate repeating groups, partial dependencies, and transitive dependencies while preserving the relationships identified in the object-oriented model. The major LMS classes can be represented through tables such as USER, STUDENT, INSTRUCTOR, COURSE, MODULE, ASSIGNMENT, ENROLLMENT, SUBMISSION, and GRADE. The USER table contains UserID as the primary key along with attributes such as _______ _______ _____ _______ _____ ___ __________ _________ ________.
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