Restaurant Billing System
Restaurant Billing System

Introduction of Restaurant Billing System Source Code

Are you looking for a Restaurant billing system source code project? We are here to help you. You can contact us. This system is named as Restaurant billing system source code. This is designed especially for a restaurant which wants to attend to their customers in a very well manner. This system has the capability to take orders from the customers.

It generates a unique transaction id for that according to the selection of the mode of payment. The icing on the cake is that it will be simply utilized by the staffs of various edifice departments and is hopped-up with extremely customizable strong options to fulfill each demand of your edifice, be it managing the stocks/inventory, increasing business potency, increasing table turnaround, managing totally different branches, aggregation client feedback, or managing any knowledge that’s necessary for your edifice, no matter the placement and time, we have got it all coated.

Thereby, raising employees’ potency and reducing client complaints. It depends upon the customer that what he exactly wants to purchase and what he needs at the time. He can opt for his choice of payment. This system has the capability of calculating the bill according to the total number of the item ordered and taxes are also added accordingly then shown to the customer in a proper bill.

Further, we will see the designing of the system and its parameters on the basis of which our system does work properly.

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Modules of Restaurant Billing System Source Code

Our system has two main interfaces one for user’s orders and the other is the admin panel.

Beyond this we have other interfaces which can be discussed as below:


Users’ data need to be registered in the system so as to identify each of them uniquely and do the-the needed transaction as easy possible. Like on the name of the bill will be issued. Beyond this, a lot of things are there where we can reference him.


After registration one can log in to the system as the operator of the system either on the behalf of the user. After this, he has the other user interfaces available for further actions.

Select Item:

Here we have the option to select the items we needed to get eat. On-demand, we have options to search according to the various filter like the taste of food on the basis of rating, feedbacks, beverages, fast food, continental, state-wise, healthy food, compliments, etc. Here onward one can select on the basis of filters according to price, newly added, a special dish, and much more us here.

Further, he can select as much as he can and added to his account in a very pleasant user interface.

Place Order:

After the successful selection of the item now he has the option to place the order. Here customer confirmation is required on the basis of the order that will be placed.


Now bill of the order will be prepared according to the items selected and further needs to show to the user. Here tax calculation is also considered and then this is passed to total calculation and then bill according to them all is shown to the user and then payment part comes.


Payment is selected by the customer either it is cash mode or by debit card or credit card as he demands the bill of the payment and order is collected by the customer after the successful payment and fed into the system.

System Design of Restaurant Billing System Source Code:

Now, this system is designed in such a way that it takes fewer resources to work properly.

It has its own sort of minimum requirements that we need to take care of:

  • The system needs a minimum of 2 GB of ram to run all the features smoothly and suddenly.
  • It needs a minimum 1.3 GHz processor to rum smooth as less than that may create problems.
  • The system needs to be operated by some authorized person as wrong hands can make it irresponsible.
  • Rest is all up to the user’s usage will care for hardware.
  • For security Antivirus is recommended.

The system has modules and classes to store every entity in a proper manner and needed to place in a proper manner so we need to have a proper design for that we put all of it in the E-R diagram of this machine. With this, every aspect of the system entities will be clear and gives a clear-cut idea to code in sequence.

Entity User:

Every User detail needs to be stored in a proper manner with very needed attributes. So, as it is very important with the view to monitor the particular customer’s likes and dislikes and further need to be given offers and gifts according to that to maintain the loyalty of the customers and retaining them for a long time. In this world, the proper need of detail of the customer is required to deep analyze them accordingly.

So, we have the specific attributes of it as follows:

Primary key User-id:

The user id is system generated and unique, which can be referenced in any other entity. This mostly for recognizing it in a unique way anywhere in the program.


Username is taken from the user and fed into this it is properly validated so that no mistake happens.


The phone number is taken here to keep the member updated and the confirmation of the event is also managed through this method.


Email is taken to make member aware of new offers new events and for future reference, it is also relevant.

Entity Items:

Item is the food items or beverages available for the customers to order for. Now, this should be dealt with in such a way that we can manage it in a very easy and quick manner no complexion should be there for the processed to filter it according to a particular attribute or according to category and price too. For that reason, we need to make it clear with its attributes to reference.

Primary key Item-id:

This is system generated and is a unique one of the most useful attributes as we mandatory need this to reference it anywhere in the interfaces and clearly, show the data to the user interface and billing interface.


Every food item is related to some sort of category to make it more refined while searching in the interfaces and finding the precise choice and order quickly.


Price of every item is mentioned to make it accessible to calculate the bill and need to filter accordingly.


Some word is shed on it to describe the food item according to healthiness and popularity and few more data like most of the trending orders and much more which can attract customers to read it and order it when we fed this in a beautiful interface with the needed amount of shading and images.

Entity Bill:

Bill is calculated on the basis of items ordered and how many of individual items quantified.

It has following attributes:

Primary key Bill id:

This is system generated and is a unique one of the most useful attributes as we mandatory need this to reference it anywhere in the interfaces and clearly, show the data to user interfaces or admin reference.

Total items:

A total number of items ordered are given here for every item the quantity is also mentioned.

Total price:

The total price of every item which is a multiplication of the item number with price is mentioned here.


As there are various taxes are levied on the food items. Each kind is calculated and mentioned here.

Grand Total:

It is a total of all including taxes and another item total.

Entity Payment:

The payment entryway could also be provided by a bank to its customers, however, will be provided by a specialized money service supplier as a separate service, like a payment service supplier. A payment entryway facilitates payment dealing by the transfer of data between a payment portal (such as a website, transportable or interactive voice response service) and therefore the forepart processor or exploit bank.

Many payment gateways additionally give tools to mechanically screen orders for fraud and calculate tax in real-time before the authorization request being sent to the processor. Changes happened when developing this application, individuals don’t get to substitute long queues to deposit the installments, no got to take a vacation for putting the repayments.

Merely we are able to deposit our cash online through applications wherever you discover totally different choices to pay the cash choices like, pay by open-end credit, master card or through internet banking. In our application, we’ve got designed it in such the simplest way that users can get the notification if there are any unfinished installments, previous 2 to a few days in order that shoppers will deposit it with no late charges.

Modes one can opt for is:

Atm Card or Debit Card:

This is the most common and most popular way of payment. Due to the advantages of the need not to carry cash it gained popularity. Pos machines are handy in this case on the customer part.


If one does not have cards then he can always go for it but seems to become very old fashioned these days.

Use Case Diagram of Restaurant Billing System Source Code:

In this use case, as you can see, we have our system as a box and the users who use our system are of the kind of outside the box but related to the system.


There are two types of users in the system who interact with the system.

Customer rep.:

Who punches data on the behalf of the customer into the system and responsible for the billing and other data fed in the system?

  • Selection of item is done by him only his responses are recorded and fed by Representative.
  • Place order after selecting the opt for confirmation know as placing an order.
  • Payment ultimately payment is done by him to the counter and mode is of his choice.
  • Collect a bill, in the end, he collects the bill for legal proof.

Admin panel:

This is where the admin can monitor every data and manipulate that too. Actually, he gases the most powerful privileges granted by the developer. In most cases, it is maintained by the higher authority where the system can be taken as security.

The things Admin can are as follows: –

  • He can log in through his id and password. The password is made very secure so that no person can guess and make it difficult for hackers to crack.
  • He has access to a profile of his own and he can search for detail of other Users and can see the detail him.
  • This admin is responsible for creating and uploading the Menu card to every User in the Interface.
  • Payment calculating is also his job. This is done by taking values from every customer’s fee and other pay He has the power to approve or deny the leave request of the User.
  • He can add staff to that account and give access to managers for handling the reception on their own.
  • He can manipulate the data of any user. In this, we are showing here the interaction of the users with our system through our use case diagram.

Functional and Non-Functional Requirements of Restaurant Billing System Source Code

The functional requirement of this is that it does what it is meant for. A functional requirement describes what a software system should do, while non-functional requirements place constraints on how the system will do so. Functional requirements specify a function that a system or system component must be able to perform.

It can be documented in various ways. The most common ones are written descriptions in documents and use cases.

Few of its functional requirements are as given below: –

User data should be fed into the system:

This system is doing that properly in user entity.

The user can select the items:

Users are able to select the items for order, which is they are doing with this system.

Place order:

The order confirmation should show in the panel of the admin or receptionist.

Able to pay the bill:

They can get their bill according to the items they have ordered and then they can pay through their card and cash as their will. They further can get their bill.

Non-Functional of restaurant billing system source code: –

Non-functional necessities square measure the other demand than practical necessities. These square measures the necessities that specify criteria which will be wont to choose the operation of a system, instead of specific behaviors. Non-functional necessities square measure within the style of “system shall be “, associate degree overall property of the system as a full or of a specific facet and not a particular operation.

The system’s overall properties remarkably mark the distinction between whether or not the event project has succeeded or unsuccessful.

Non-functional requirements of restaurant billing system source code necessities – are often divided into 2 main categories:

  • Execution qualities, like security and usefulness, that square measure evident at the run time.
  • Evolution qualities, like liabilities, maintainability, flexibility, and quantifiable, that square measure embodied within the static structure of the code.

Non-functional requirements of restaurant billing system source code necessities place restrictions on the merchandise being developed, the event method, and specify external constraints that the merchandise should meet. Our project qualifies all the criteria of functional and non-functional accordingly and the system is up to mark performance vice.

Here we need to take care of few more things before heading towards the system. The most important feature of the application world is the application’s ease of usage .application will easy to use if made while keeping in mind that the user need not think twice about searching any feature. Everything should be made distinctive by using the color combination such that everything needed most frequently highlighted with focus colors.

We can use simple layouts like a card layout. By varying color combinations many good intuitive interfaces can be made. Which ultimately makes the interface easy to use for a long time. Unlike ancient style wherever the goal is to form the thing or application physically enticing, the goal of interface style is to form the user’s interaction expertise as straightforward and intuitive as attainable – what’s typically known as user-centered style.

Where smart graphic/industrial style is daring and eye-catching, smart interface style is commonly delicate and invisible.

Keep things simple and consistent: –

Simple and Harmonic way making up is very intuitive and needs to followed.

Make good use of typography: –

The typography is taken care very strictly as the need of the system.

Use colour and contrast properly: –

Color combo of lite and dark is good way emphasis and done well in this system.

Consider feedback messages: –

The feedback form is a very good way taking feedback of forms and improving the system.

Simplified forms: –

The form is made simple to fill with the clean user interface.

Conclusion of Restaurant Billing System Source Code

Finally, in the restaurant billing system source code, the outcome of all the time hard work is here. We have a system which takes the necessary choices of the customer according to the various filter like price, category of the food, and popularity. Then he is able to place the order accordingly and then the system calculates all the total of the order with taxes and then it can dispatch the bill that is handed over to the customer.

Customer according to the choice pay bill via cash or debit card or credit card method. Hence all the process works perfect, full filling the demands.