Frontiers in Computing and Intelligent Systems 
ISSN: 2832-6024 | Vol. 4, No. 2, 2023 

 

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Design	and	Implementation	of	a	C++Based	Hotel	
Management	System	
Wei Chen, Xiangyu Chen 

 College of Applied Science and Technology of Beijing Union University, Beijing, China 

 

Abstract: In this paper, we use C++ as the development language and QT to design and develop a hotel management system 
for the current development of the hotel industry. The system adopts the B/S model to connect the object with the database, so 
that it has better flexibility and reusability. Its functional modules mainly include customer service module, front-end processing 
module, back-end management module, data storage module and other parts, which mainly realize the hotel customer's 
reservation, check-in and check-out and the management of the hotel internal staff and other functions. The development cost of 
the system is low and the operation is simple, which reduces the learning cost of the staff, improves the management efficiency 
of the hotel and facilitates the maintenance and management at a later stage. 

Keywords: Hotel Management System; C++; Functional Modules; Database. 
 

1. Introduction 
With the development of the times, the application of 

computers in hotel management has been extended to various 
departments, and the hotel management system has become 
an important tool for modern hotel management. Through the 
computer system to deal with things in the hotel, it has solved 
the drawbacks of manual management, reduced labor costs 
and time costs, and improved management efficiency. At 
present, part of the hotel management system is still C/S 
architecture, each terminal needs a client, [1] resulting in low 
processing efficiency, equipment maintenance trouble, 
increasing the user's difficulty of use. In this paper, we design 
and adopt a hotel management system based on B/S 
architecture, which can effectively manage the information of 
the hotel, reduce the maintenance cost of the hotel, and then 
improve the profitability of the hotel and increase the overall 
competitiveness of the hotel. The system development uses 
MySQL database for data storage, MySQL++ as API for 
linking, and Microsoft Visual Studio 2019 combined with QT 
for windows side development. 

2. System Overview 

2.1. System Requirements Analysis 
The design of the C++-based hotel management system is 

oriented to the hotel's internal staff and the hotel's customers. 
In order to facilitate the use of users, the system should be 
designed to be relatively simple, easy to understand operation, 
and reduce the learning cost of staff and customers in order to 
achieve high efficiency. The system needs to realize the 
internal management of the hotel and the customer-oriented 
part respectively, and the hotel's staff information and 
customer information are not interchangeable. In the client 
side, the main functions of the system include room 
reservation, check-in service, departure settlement, etc. In the 
staff side, the main functions of the system include work 
arrangement, authority management, staff application, etc. 
After the system design is completed, daily maintenance 
personnel need to be retained to ensure the normal operation 
of the system. 

2.2. System Function Analysis 
The system will be mainly divided into two parts, one for 

customers and one for hotel staff. The customer-oriented part 
mainly realizes the functions of hotel information view, room 
reservation, information registration, room service, departure 
settlement, hotel contact and hotel evaluation, etc.; the hotel 
staff-oriented part mainly realizes the functions of staff 
information registration, work arrangement, staff application, 
etc. 

After logging into the system, customers can view and 
book the hotel. The hotel information module contains the 
basic information of the hotel, so that customers can see the 
location, appearance, contact phone number, user evaluation 
and other basic information of the hotel on the cell phone; the 
room reservation module allows customers to see the specific 
information of the room, including the room type, size, 
lighting condition, location and other information, and at the 
same time, they can book the room type they want, and 
subsequently they can also unsubscribe from the rooms 
already booked; the information Registration module is the 
basic information that customers need to fill in when booking 
a room, including customer name, ID number, contact 
information, length of stay, arrival time, number of people 
staying, etc., so that it is convenient to confirm with the front 
desk when arriving at the hotel; room service module is the 
service that customers can choose after staying at the hotel, 
this module contains the relevant services in the room, such 
as TV screen casting, breakfast delivery, take-away, etc. 
Services, through the choice can be made to the hotel service 
personnel for service; departure settlement module allows 
customers to leave the hotel at anytime, anywhere, without 
waiting for the hotel settlement, refund deposits and other 
operations can be achieved directly under this function, 
saving time; contact the hotel and evaluation of the hotel 
module means that users can contact the hotel before and after 
the stay for consultation, to understand the relevant 
information, or after leaving the hotel are to the hotel's service 
and environment, etc. for evaluation. 

After the employee’s log in the system, they need to use 
different functions according to different authority. The 
information registration module of hotel staff needs to register 



 

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the staff's name, age, work number, ID number, origin, 
position and system authority, etc. All hotel staff need to be 
registered. Ordinary employees can check their current 
schedule, sign in and clock out, and make applications to the 
management, etc. The employee application function is 
mainly used for employees' leave and shift transfer 
applications. Front desk staff can register and confirm 
customers' information at check-in, give feedback to 
customers' room reservation, help call service staff or 
maintenance staff, check and update hotel room information, 
respond to customers' service requests after check-in, and 
help settle accounts after customers leave the hotel, record 
customers' opinions and comments, etc. according to the 
rights assigned by the administrator. Managers such as the 
hotel manager can check the basic information of employees, 
review the application of employees, check the operation of 
the hotel, make work arrangement for other employees, 
review the financial situation, check the customer information, 
modify the room information, check the evaluation of the 
hotel by the customers who have stayed in the hotel, etc. after 
logging into the system. If an employee takes a leave of 
absence, other employees can be drawn to fill the missing 
position in time, and at the same time, some relevant 
information about special offers can be released. The system 
administrator has all the rights of the system, but can only use 
it after getting the authorization from the hotel management, 
and is only responsible for maintaining the normal operation 
of the system on a daily basis. 

Hotel Management 
System

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Figure 1. System Structure and Function Diagram 

3. System Design 

3.1. Design of Classes 
C++ is an object-oriented programming language, and 

classes are a very important concept in C++, which is the basis 
for implementing object-oriented programming. A C++ 
program of a certain size is made up of many classes. In the 
process of writing class definition, functions and variables 
should be named according to their meanings and functions, 
not just any names. According to the top-down programming 
principles, the class definitions are written according to the 
plan. The following is the design of the specific relevant 
classes in the program. [2] 

The hotel management system as a whole needs the 
following classes, permission class includes customer class, 
administrator class, front desk staff class and general staff 
class, permission class is mainly through different 
permissions to distinguish between staff and customers, as 
well as the functions between various employees; information 
class includes room information, customer information, staff 
information, hotel information, etc., which is mainly used to 
store relevant information, combined with the previous 
permission class, so that people with different permissions 

can access different information. The staff class is the base 
class, the administrator class inherits all its permissions, while 
controlling other permission classes, has the right to manage 
and control them, modify other staff permissions, can read 
and modify all the information in the information class of the 
information, which, the system administrator generally uses 
its own permissions, which is mainly responsible for the daily 
maintenance of the system. The front desk staff class contains 
the general staff class, which can notify the users when they 
need it, so that the staff of corresponding functions can meet 
the needs of customers, such as daily cleaning and 
maintenance work, while the front desk can view the 
corresponding customer information, room information, and 
can modify this information. The general staff class mainly 
completes the work arrangement from the manager, and can 
also make application to the manager. 

3.2. Database Design 

Clients

Reservation

Room

Employees

Check in

Submit

Orders

Audit 
Management Management

Administrators

Management

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Figure 2. Hotel Management ER Chart 

 
The database is the data support for the system and the data 

that comes into the system is put into the database for storage. 
By analyzing the above E-R diagram, the system 
requirements for the database can be derived, and the logical 
structure of the database can be further determined, and the 
logical structure model of the database can be further 
determined from the above E-R diagram, [3] to derive the 
database information tables required by the system, mainly 
including customer information table, staff information table, 
room information table, hotel information table, etc. The 
database tables and their field contents need to be established, 
specifically including: (1) hotel room information table: 
generally including room number, room type, check-in price, 
related preferential activities, supporting facilities, number of 
occupants, check-in time, check-out time, current status of 
rooms, etc.; (2) room reservation order table: record the 
customer's reservation information for the hotel room, such as 
the reserved room number, expected check-in date (2) room 
reservation order form: record the customer's reservation 
information for the hotel room, such as the reservation room 
number, expected check-in date, reservation time, length of 
stay, number of occupants, number of rooms reserved, contact 
information, name and ID number, etc.; (3) occupant 
information form: generally include the name, contact 
information, ID number, etc., used to store the actual occupant 
information; (4) order form: include order number, 
accommodation consumption amount, accommodation 



 

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deposit, consumption of room items during the stay, number 
of occupants, occupancy (5) order statistics table: including 
order number, room usage, room type, etc.; (6) consumption 
details table: including order number, settlement time, 
consumption details, consumption total, check-out personnel, 
etc.; (7) system user information table: user ID, account 
number, name, contact information, ID, etc., account number, 
name, contact information, ID number, user points, user 
check-in history, historical orders, etc.; (8) hotel personnel 
information table: employee ID, work number, name, login 
account, gender, age, contact information, position, system 
rights, department, etc.; (9) hotel employee application form: 
employee name, work number, application content, etc.; (10) 
system rights assignment table: user type, user rights. 

Customer information table includes: name, contact 
information, document type, document number, room number, 
length of stay, stay time, comments and other parts. Customer 
name is generally 2-4 Chinese characters, using varchar type, 
a Chinese character needs three bytes, so set its length to 12; 
contact information is generally 11 digits cell phone number, 
so set it to the length of 11 varchar type; document type is 
Chinese characters, there are a variety of types, so set it to the 
length of 128 varchar type; document number is generally The 
ID number is usually 18 Arabic digits, so set it as a varchar of 
length 18; the length of stay is from a certain day to a certain 
day, so its data type is datetime; the check-in time refers to a 
certain day and a certain time when the customer checks in, 
so its type is datetime; the note refers to the note information 
left by the customer when booking the room, so set it as a 
varchar of length 128; The user priority is decided according 
to the customer's consumption in the hotel, and its data type 
is set to int with a length of 5, which is used to identify 
whether the customer can enjoy priority service and 
personalized service. Other information tables are designed in 
the same way. [4] After analyzing the ER relationship diagram, 
the basic structure of the database tables can be constructed, 
and three main tables are selected in this section for structural 
design demonstration. 

4. Function Implementation 

4.1. Account Function Design Implementation 
After entering the system interface, the system will provide 

a login entrance, the system adopts a unified login interface, 
the user can choose to login or register after entering the login 
interface, follow the corresponding button prompts to 
complete the login operation, after entering the account 
password, the system will verify, if correct, then enter the 
operation interface, if wrong, there will be a "username or 
password error " prompt. Both employees and hotel 
customers have to log in from the same interface, but you can 
choose whether to log in as a customer or an employee 
through different options, and you will enter different 
operation interfaces after logging in with different identities. 
The customer interface allows you to choose to view 
information about the hotel and to make room reservations, 
while the employee login allows you to choose to view the 
current work schedule, make requests and other operations. 

4.2. Implementation of Scheduled Functions 
After logging into the system, customers can use the room 

reservation function through the navigation bar of the system. 
After selecting the corresponding room in the interface, input 
the corresponding information according to the prompt of the 

system, such as the expected time of stay, the number of days 
of stay, the number of people staying, the reservation 
information, contact information, room information, etc. The 
system will generate the order after the customer fills in the 
relevant information, and if there is key information not filled 
in, then the system will prompt the customer and help him/her 
to improve the information. After the user confirms that the 
information is correct and clicks to submit the order, the 
reservation of the hotel room will be completed, and then the 
system will send the relevant order information and customer 
information to the relevant personnel of the hotel for review 
and confirmation. After the hotel completes the confirmation 
and ensures that the room is successfully reserved, feedback 
information will be sent back to the customer through the 
system for secondary confirmation, thus completing the entire 
booking process. After the reservation is completed, the 
customer can check the relevant order information in the 
personal center, make changes to the relevant information, or 
cancel the outstanding order. 

4.3. Implementation of Front-end Functional 
Modules 

The front desk function module can realize the functions of 
customer information registration, verification, room 
reservation, remote reception and self-service departure 
settlement through the Internet, in addition to updating the 
status of hotel rooms, reporting maintenance, and 
summarizing related reports. After a customer has made a 
reservation, the front desk of the hotel needs to respond by 
confirming the current status of the reserved room, reserving 
the room, generating a report, and providing feedback to the 
customer. [5] After helping the customer to complete the 
reservation, the relevant information is stored in the system 
so that the management can view it. When a customer books 
a room, the front desk staff can see the customer's priority 
level and provide priority service or better personalized 
service according to the customer's level to improve the 
customer's stay experience. 

4.4. Implementation of Backend Functional 
Modules 

The back-end part of the system is mainly provided for the 
hotel staff to use, which is divided into general staff, front 
desk administrator, system administrator and hotel 
management, distinguished according to the different 
positions and permissions. In order to simplify the design of 
the system, all employees use a unified operation interface, 
but since each employee has different permissions, different 
navigation bars are set up according to different permissions, 
so that employees with different permissions can complete 
their corresponding work. The part of ordinary employees 
mainly realizes the operations of viewing and modifying their 
own information, viewing the current work arrangement, 
making applications to their superiors, submitting customer 
feedback, etc. The administrator can use all the functions in 
the system, to process, check and approve the financial related 
information, manage the users of the system, view and reply 
to the customer's comments, approve the applications 
submitted by the employees, and complete the management 
of the rooms, including modifying the information of the 
rooms and setting the corresponding special offers. The 
system administrator has the highest authority of the system 
and can change the authority of other accounts, which is 
mainly responsible for the daily maintenance of the system, 



 

39 

so the administrator authority is generally not used. 

5. System Functionality Testing 
After completing the design of the hotel management 

system, it is necessary to conduct corresponding functional 
and performance tests on the system. These include system 
interaction test, stability test, corresponding ability test and 
security test, etc. The relevant tests all need to simulate the 
operation of front desk staff, administrators, customers and 
other personnel. During the test, it was found that there were 
some conflicts in the authority of some classes and the 
authority was not clear enough, after which the problem was 
solved by redefining the classes and solving the conflicts 
between some statements. From the overall test results, the 
system's functionality and related performance could meet the 
expected requirements and no further problems occurred. 

6. Conclusion  
The article completed the development of the chain hotel 

management system based on C++ in windows environment, 
combined with the practical work, the design and 
development of the hotel management system was explored, 
the basic functional requirements of the hotel management 
system was explored, the customer service module, front-end 
processing module, back-end management module, data 

storage module and several other parts were designed and 
implemented, the specific development practice of the main 
functional modules was carried out, and the testing work of 
the relevant functional modules was completed, the results 
showed that the functions in the system run stably, the 
operation is relatively simple, the efficiency of the hotel 
management system was improved, and it has a strong 
practical role. 

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