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Domain Model

Domain model​

Customa Cafe's domain model tracks customer lifecycle from onboarding to repeat engagement.

Key aggregates​

  • Member aggregate: account, profile, membership status.
  • Promotion aggregate: coupon/stamp assets and redemption rules.
  • Reservation aggregate: booking, status, and slot validation.

Invariants​

  • Active membership must map to a valid period.
  • Promo redemption must respect quota and rule boundaries.
  • Reservation status cannot skip required state transitions.

Code implementation​

Models and relationships live in app/Models/; state rules are enforced in service/controller flows.