Design Elevator System

Requirements Definition

• The elevator system should serve a multi-story building with multiple elevators.
• Users can request elevators from any floor (by pressing up/down buttons) and select destination floors inside the elevator.
• The system should assign elevators to requests efficiently to minimize wait and travel times.
• Elevators must handle requests in both directions (up and down) and support multiple concurrent requests.
• The system should support basic operational modes: normal operation and maintenance (where an elevator can be taken offline).
• Safety features must be present, such as not moving with doors open and not exceeding capacity.
• The system should provide clear status indicators (e.g., floor number, direction, out-of-service) on each elevator and floor panel.
• The design should be simple and focused on core functionality, without overcomplicating with advanced features like fire/emergency mode or predictive scheduling at this stage.