Loading...
List functional requirements for the system (Ask the chat bot for hints if stuck.)...
Register vihicles when entering the parking lot.
Track vehicles when exiting the parking lot.
Assign a parking lot to incoming vehicles.
Calculate durations of each vehicles and calculate parking fees.
Maintain allocated/free parking slots.
List non-functional requirements for the system...
Estimate the scale of the system you are going to design...
350 cars/day
Define what APIs are expected from the system...
enter(licencePlate, carSize, accessibleParking?) -> response (start time, parking slot number)
exit(license plate): exitResponse (start time, end time, duration)
getReceipt(license plate):
Defining the system data model early on will clarify how data will flow among different components of the system. Also you could draw an ER diagram using the diagramming tool to enhance your design...
ParkingSlot:
slotID: PK
level: 1,2,3,4,5
size: Compact/Standard/Large
isAccessible: true/false
allocated:
licensePlate
start time:
Order:
slotID:
licensePlate:
startTime:
endTime:
total:
You should identify enough components that are needed to solve the actual problem from end to end. Also remember to draw a block diagram using the diagramming tool to augment your design. If you are unfamiliar with the tool, you can simply describe your design to the chat bot and ask it to generate a starter diagram for you to modify...
User -> Enter the ParkingLot -> Scan the plate, with time, get a ticket -> Call enter API to allocate a parking slot
When leaving the parking, insert the ticket -> call exit API to free the parking spot , calculate the
Explain how the request flows from end to end in your high level design. Also you could draw a sequence diagram using the diagramming tool to enhance your explanation...
Dig deeper into 2-3 components and explain in detail how they work. For example, how well does each component scale? Any relevant algorithm or data structure you like to use for a component? Also you could draw a diagram using the diagramming tool to enhance your design...
Explain any trade offs you have made and why you made certain tech choices...
Try to discuss as many failure scenarios/bottlenecks as possible.
What are some future improvements you would make? How would you mitigate the failure scenario(s) you described above?