O cenário
An admin creates voucher batches containing multiple vouchers; users redeem eligible vouchers against subscription plans while policies enforce limits and all administrative actions are recorded for audit.
O que há neste desenho
Entenda as decisões por trás dele.
01
Modelled voucher status and type as enumerations to constrain state and category.
02
Used composition for batch-to-voucher containment and dependency for policy validation.
03
Added audit logging to track admin actions.
Reuse when designing the domain model for voucher or promo code features in streaming subscription platforms.