情境
A tricycle association manages multiple tricycles owned by individuals, each requiring periodic registration and maintenance tracking.
這張圖裡有什麼
看懂背後的決策。
01
One-to-many linking of tricycle to owner via FK
02
Separate registration entity for annual renewals
03
Maintenance as a standalone entity per service event
Any fleet management system for motorized tricycles or similar public utility vehicles.