情境
A comparison platform allows prospective students to evaluate university programs by tuition, living costs, median salaries, employment rates, and calculated ROI.
這張圖裡有什麼
看懂背後的決策。
01
Normalized CostData, EarningsData, and ROI as separate entities to support historical and multi-year comparisons.
02
Introduced User, Comparison, and ComparisonItem to support saved multi-program side-by-side comparisons.
03
Used composite primary keys on ComparisonItem to enforce unique program entries within each comparison.
Reuse this schema for any web application that aggregates institutional cost and outcome data for comparative analysis.