情境
Design a class model for an OTT platform's voucher redemption system, focusing on user account management, subscription plans, voucher validation, and redemption tracking.
這張圖裡有什麼
看懂背後的決策。
01
Modeled User and Account as separate classes to separate identity from authentication.
02
Used multiplicity on associations to capture one-to-many relationships.
03
Included VoucherStatus and SubscriptionStatus enumerations to constrain lifecycle states.
Use when modeling backend services for streaming platforms that support voucher-based subscription activation and account management.