Related Object-Oriented Design
Design a car rental domain model covering vehicle categories and vehicles, branches, customers and drivers, a rental date range, rate-based quotes, reservations, pickup rental agreements, and return inspection with extra charges — preventing overlapping rentals of the same vehicle.
Related Object-Oriented Design
Design a hotel domain model covering room types and rooms, guests, a half-open date-range value object, the reservation lifecycle, room assignment, check-in/out, and a charges folio, while preventing overlapping bookings on the same room.
Related Object-Oriented Design
Design a library that models catalog titles versus physical copies, members and librarians, checkout/return/renew/reserve flows with loan due dates, an overdue fine policy, and notifications as a boundary.
Related Object-Oriented Design
Design a Q&A platform domain model with users, questions, answers, comments, tags, votes, an accepted-answer rule, and a reputation policy, with the voting, acceptance, and reputation invariants enforced in the model.