Design a parking lot system?

What are Functional Requirements?

The following is a list of functional requirements for a parking lot system:

• The parking lot system should be able to park cars, bikes, and handicapped vehicles.
• The system should be able to calculate the cost of parking for each type of vehicle.
• The system should be able to keep track of the time a vehicle is parked.
• The system should be able to remove a vehicle from a parking spot.
• The system should be able to check the availability of parking spots and handicapped spots on a specific floor.
• The system should be able to calculate the number of hours a vehicle has been parked.

Non-Functional Requirements for Parking Lot

• The system should be efficient and respond quickly to user requests.
• The system should have a well-designed interface to make it easy to use.
• The system should be efficient and respond quickly to user requests

We should have a parent parking spot Class & individual spot classes will derive this spot classes example

• parent parking lot class [ abstract class]
  -individual class derived from parent are

  • =>handicapped
  • =>compact
  • =>large
  • =>2 wheeler

• Parking ticket

  • id
  • parking spot id
  • spot type
  • time

-Terminal[ abstract class]
-individual class derived from parent are
=> Entry Terminal
=> exit Terminal

• Parking strategy / nearest spot we can use a min-heap data structure.
• let say we have created a 4 min heap & now we have spot added under this min-heap in order of distance from enterance
• when we call min head from any gate it will give the nearest spot
• mark spot as reserved & moved to reserved spots from available slots
• mark spot as reserved & remove from all min heap structure

Payment Processing

• credit card
• cash