Sequence Diagram for Collin's Car Parking System

Running head: CAR PARKING SYSTEM
Assessment 3
Name of the Student
Name of the university
Author Note:

1CAR PARKING SYSTEM
Table of Contents
Introduction:....................................................................................................................................2
Background of the System and Assumptions:.................................................................................2
System Components:.......................................................................................................................3
Ticket Checking Subsystem:...........................................................................................................5
Ticket Purchase Subsystem:............................................................................................................7
Payment Subsystem:........................................................................................................................9
Conclusion:....................................................................................................................................10
Bibliography:.................................................................................................................................12

2CAR PARKING SYSTEM
Introduction:
For completing the study, the sequence diagram has been selected. The sequence diagram
is a dynamic UML modeling solution (Nanthaamornphong et al., 2015). This diagram
concentrates on the objects and processes. UML is the abbreviation of Unified Modeling
Language. This modeling language assist the software designers to gather and present the aspects
of proposed system.
The study includes the description of the Collin’s car parking system. In addition to that,
the study presents three sequence diagram of three sub systems of car parking system. The
proposed sequence diagram is created based on three important use case of the parking system.
Background of the System and Assumptions:
The system is a car parking system for Collin. It has been assumed that the car parking
system is going to be implemented in the premise of parking area. The system will be handling
two types of customers. The system will be categorizing customers based on the tickets they
have purchased. The fixed customer will buy seasonal tickets. On the other hand, the ordinary
customer will buy tickets every time they will request for parking car. Six types of seasonal
tickets are available at the parking. The fixed customer can buy tickets for one year, six months,
quarter of a year, one month, two weeks and one week. There is no exception in ticket processes.
The ordinary tickets are charged with different prices based on the time parking request is
submitted as well as the day. The charges are generally high during weekends.
The system has various devices connected to it. Each of the devices are connected to the
core system. A database is also connected with the system so that all the required data can be

3CAR PARKING SYSTEM
stored for business purposes. The system will not hold the records of the customer who
purchases ordinary ticket, but fixed customer information are registered into the system.
System Components:
The system has mainly five components that are integral part of the daily process. The
sensors are the smallest part of the system which are installed within the pillars. These sensors
recognize any approaching car toward the gate. The sensor sends the signal to the core system
and the system generates an output on the display. All the IoT devices installed in the pillars are
connected to a microcontroller. This microcontroller handles the processes of the IoT and
communicate with the main system. The display in the pillar acts as the communication medium
between the customers and the system. The customer input the details, required to park the car,
and the system process those inputs to generate a result. The display will show a message after
every action to let the customer know whether the process is successful or not.
The ticket generator and ticket checker are integral part of the system. The ticket
generator works independently and only takes input from the core system. The system only sends
Boolean values and ticket code to the ticket generator. The ticket generator prints the code of the
ticket and the date on which it is created. The barriers are also a part of the system. The parking
system uses standard barriers that can operate on their own, that means these have own
microcontroller. The system only sends a signal to the barrier and the barrier rises or closes as
per the signal request. As the whole system is runs automatically, the use of the good quality of
microcontroller is recommended. Good quality microcontrollers can work very fast and
effectively on their own and generate desired results. The system can process other operations at
that time which will result in not only quicker response to user request but also better service.