Cimplify
Worked scenarios

Rentals

Modelling take-it-and-return-it businesses: car, equipment, bike, and boat rental. What moves, the setup, and the trap.

A rental is the hybrid block: the customer takes a physical thing and brings it back. It is not a retail sale (ownership doesn't transfer) and not a pure service. Model it as a multi-day service over a bookable resource (the actual vehicle or gear), with pickup/return wording and a deposit.

Car / van rental

Moves: rental (multi-day service over vehicle resources).

  1. "Compact" and "SUV" are whole-unit resource types, often assign-later (pick the actual vehicle at pickup).
  2. The rental is a multi-day service, days, pickup/return wording, requiring the type.
  3. Insurance and extras are add-ons or fields; a deposit and early-return policy apply.

Equipment / tool rental

Moves: rental of gear.

  1. Gear is a fixed-quantity resource type (rent 2 drills out of the fleet).
  2. The rental is a multi-day service with pickup/return; a deposit covers damage.

Bike / scooter rental

Moves: rental, often short.

  1. Bikes are whole-unit (a specific bike) or fixed-quantity (a count from the fleet).
  2. Hourly or daily hire is a service over the resource.

Boat / yacht charter

Moves: rental, often with crew.

  1. Each vessel is a whole-unit resource type (often one unit).
  2. A charter is a multi-day or by-the-day service; a skipper is a staff requirement.

Trap: a rental is never a retail sale — if you model it as a product that "sells", you lose the return, the deposit, and the availability of the physical unit. It's a service over a resource.

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