Free ER Diagram Template for Online Shopping Management Systems

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ER diagram online shopping management

About this ERD example

Following is an ER diagram for online shopping system. Through visual representation by help from diagram, it illustrates the functionality as well as the operational working inside an online shopping system.

Here in this ER diagram the entities involved include the admin, user, contact, product and order. Each instance of an entity is represented by using a primary key identified by key word “PK”. A primary key is used to uniquely identify a row inside an entity.

The entity ‘admin’ consists of ad_name which acts as the primary key, ad_name which represents the name of the admin, ad_password which hold the password of the admin account, ad_email representing the email address of the admin and lastly ad-phone which contains the contact information for the admin.

The entity ‘user’ consists of us_name which acts as the primary key, us_name which represents the name of the user, us_password which hold the password of the user account, us_email representing the email address of the user and lastly us_phone which contains the contact information of the user.

The entity ‘contact’ consists of c_id which acts as the primary key, c_name representing the name of user who the contact information belongs to, c_country representing the country name for the user, c_email representing the email for the user, and c_phone representing the contact info of the user.

The entity ‘product’ consists of p_id which acts as the primary key, p_name which represents the name of the product, p_price which represents the price for the item, p_code representing the code of the product, p_warrnty specifying the warranty duration for the product and p_date which represents the date of when the item or product was uploaded.

The entity order consists of or_id which acts as the primary key, or_date representing the date for which the order was placed, p_id which represents the product id of the item present within the order, us_id representing the id of the user who bought the item, and or_quantity representing the number of items present in the order.

How to use this template

Step 1

Click Use this template.

Step 2

After successful login, you can customize the diagram by Drag and drop new shapes from the libraries present on the left side.

Step 3

Edit the text. Style the lines, boxes, and text by clicking on the respective elements. You can also save some common elements in your personal libraries for future use.

Step 4

After you are finished, export the diagram in various formats. Your options include SVG, PPTX, PDF, or JPG.

Benefits of the template

Through ER diagram a clear and comprehensive overview of operation and working within an online shopping system is achieved. Through this one can gain clear insight into various entities and relationship involved among the entities.

Using ER diagram, the owners of online shopping system can effectively plan their needs and determine how different operations will interact with each other to complete the work that needs to be done. The ER diagram will also help during the creation of expansion plans as it can help review the current working structure within the online shopping system.

Whether you are an administrator, an IT professional or a student, ER diagrams are an essential tool to help you understand the working and information management within an online shopping system.

FAQs about this Template

What are the entities of online shopping system?

Online shopping system contain various entities depending on the requirement of the system. Typically, an online shopping system consists of admin which manages the systems, the user who explores the system, contact which holds the contact information of the user, product which holds information related to a specific product and order which holds order details.
How to draw an ER diagram for online shopping?
- Identify the entities. Typically, an online shopping system consists of admin, the user, contact, product and order details.
- Define the attributes for each of the identified entity.
- Define the relationship among the listed entities.
- Draw the diagram, its better to draw it on online platforms like edraw max.
What is the relationship between order and payment?

Whenever an order is completed, a user must pay the payment for that order. Here the customer has various payment options to choose from. So whenever an order is generated, a payment for that order must be payed.