Vaccine Distribution System ER Diagram
This article will walk you through the process of creating an entity relationship diagram, often known as an ERD, for the project entitled Vaccine Distribution System.
Vaccine Distribution System Description
When it comes to vaccine distribution, the term refers to a network of organizations and institutions that are responsible for ensuring that vaccines are delivered from manufacturers to providers and finally to patients. Manufacturers, distributors, providers, and patients are all part of the vaccination delivery system. Additionally, the system consists of organizations and facilities that are in charge of maintaining the cold chain, which is the temperature-controlled supply chain that is required for safeguarding vaccines from the possibility of contamination.
The suggested technology will assist people in registering for vaccinations and reserving their immunization appointments. In addition, the system will manage information about medical front-line workers, patients, vaccination clinics, and vaccines in an electronic manner. Patients and medical front-line workers will have easy and convenient access to the information they require to complete the immunization process.
ERD
This is the first phase of the development of the Vaccine Distribution System, and it will serve as the foundation for the creation of the actual database that will be used by the system in the future. Vaccine Distribution System
We will create an entity relationship diagram for the Vaccine Distribution System and outline the procedures that must be taken in order to complete the diagram creation. Let us begin with the symbols that are used in the ER Diagram.
The rectangle shape represents the entity that is being shown in the diagram below. At some point in the future, we will use this entity to make a database table for our Vaccine Distribution System.
The shape of a diamond can show how a relationship works, like how it fits together. A lot will depend on this. A primary key to foreign keys relationship is often the best way to do this.
The shape of the oval is a way to show the attribute for the entities specified. Columns or fields will be added to each table in the Vaccine Distribution System, and this will be the case.
We will follow the 3 basic rules in creating the ER Diagram.
- Identify all the entities.
- Identify the relationship between entities and
- Add meaningful attributes to our entities.
Step 1. In the Vaccine Distribution System we have the following entities:
- Vaccine Info
- Vaccination Center
- Vaccination Schedule
- Vaccination Record
- Registration
- Front Liner
- Front Liner Category
According to our model, the Vaccine Distribution System has seven parts or entities. These are the six parts or entities that make up the system. These are the parts that make up our database tables, which we will design and build as we work on the Vaccine Distribution System database schema. These are the tables that make up our database tables.
To show how the whole thing works, we’ll make a rectangle with the parts of the Vaccine Distribution System inside. The diagram below shows the different parts of the Vaccine Distribution System, like the people and things that make it up.
Step 2. After we have specified our entities, it is time now to connect or establish a relationship among the entities.
- A front liner technically may belong to multiple categories just like for example a person can be a nurse and a doctor at same time depending on their achievements. For the purpose of this project the relationship of frontliner to frontliner category is only 1 is to 1 (1 to 1 relationship).
- Front liner personnel may appear on the vaccine records depending on their assignment and task (1 to many relationship).
- Registration process is a one-time process (1 to 1 relationship).
- Vaccine name information may appear in the vaccine records to summarize the number of people vaccinated by vaccine type and brad (1 to many relationship).
- Vaccine information may appear multiple times in the vaccination schedule record. This is to inform the public of what are the available vaccines for a specific date and schedule of vaccination (1 to many relationship).
- Vaccination center is also included in the schedule several times (1 to many relationship).
Step 3. The last part of the ERD process is to add attributes to our entities.
Vaccine Info Entity has the following attributes:
- Vaccine ID – primary key represented with underline
- Vaccine name
- Vaccine info
Vaccination Center Entity has the following attributes:
- Center ID – primary key represented with underline
- Vaccination center
- Address
- Contact number
- Longitude
- Latitude
- Contact numbers
- Status – open, closed
Vaccination Schedule Entity has the following attributes:
- Schedule ID – primary key represented with underline
- Date
- Time start
- Time end
- Vaccination center id – foreign key
- Slots available
- Vaccine id – foreign key
Vaccination Record Entity has the following attributes:
- Record ID – primary key represented with underline
- Registration id – foreign key
- Vaccine id – foreign key
- Date of 1 dose
- Date of 2 dose
- Date booster shot
- Vaccine booster
- Front liner id – foreign key
- Doctor comments
- Feeling of patient before vaccination
- Remarks
Registration Entity has the following attributes:
- Registration ID – primary key represented with underline
- First name
- Last name
- Middle name
- Contact
- Email address
- Date of birth
- Username
- Password
- Status – pending, approved, disapproved
Front Liner Entity has the following attributes:
- Front liner ID – primary key represented with underline
- Complete name
- Front liner category id – foreign key
- Contact number
- Email address
- Facebook account
Front Liner Category Entity has the following attributes:
- Category ID – primary key represented with underline
- Category name
- Job description
Summary
Entity Relationship Diagram (ERD) is a diagram that shows how entities and their relationships are shown in a picture. It is used to show and understand how data structures work. ERDs are used in database design, data mining, and other fields that deal with information systems. ERDs can be used to show any kind of data structure, but they are mostly used to show database schemas.
People use entities to store information about a single thing or concept. Entities can be things like customers, products, orders, and even people at work. A relationship is a connection between two things that shows how the information in one thing is linked to the information in the other thing. Relationships can be simple, like a one-to-one relationship between two things, or they can be more complicated, like a many-to-many relationship between two people.
The ER Diagram design for Vaccine Distribution System will be a great help and source of information in the next stage of the project which will be the actual database design.
In addition, we will also give you a PowerPoint or Video Presentation for the entire ER Diagram. Make sure you visit and subscribe to our YouTube channel to see the videos.
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