Medivault Dispenser Controller

Design the software controller for an automated pharmaceutical kiosk. The system must validate a digital prescription, check inventory, and then coordinate hardware to dispense medication. It must also notify the pharmacist if inventory is low or if a dispensing error occurs. The dispense process involves a strict sequence: Sanitize -> Count -> Label -> Release. Provide a design that ensures this sequence is followed while allowing different hardware models to implement the physical steps.