Deployment diagram for online web application

About this deployment diagram for the online web application

The UML deployment diagram for the online web application shows a high-performance, reliable, and secure web-based multi-tier architecture. It can be scaled easily. The client devices are at the top which connect to the web application via a browser over HTTP/HTTPS. This is a secured communications protocol. It ensures that the client-server communication is fully encrypted. This protects the user's data and makes browsing safe.

When requesting any service, the load balancer is key. It balances the incoming load among several servers. The load balancer distributes user requests to idle servers. This avoids server congestion. It ensures high availability and fast responses during peak hours.

The load balancer balances out the requests to the web servers (web server 1 or web server 2) which contain the application on its instance respectively. These web servers are front-end servers that take up requests, do application processing, and interact with the users in real-time.

A web server connects to an application server (1 or 2). It hosts the app logic, which runs the main business functions and makes decisions. The application servers run heavy business logic separately. This lets the system accept several requests without stalling. This distinctiveness of web and application servers saves resources. It ensures that a user's interface is not delayed by processing the business logic.

At the bottom of the system is the database server at which the database is located and SQL queries are handled. This server is vital for the system's storage and retrieval functions. It holds user accounts, transaction data, and app settings. The proposed database aims to ensure fast, correct, and reliable data. These are vital for an application that needs real-time data retrieval and updates.

This UML deployment architecture is perfect for web applications. It ensures effective resource use, data safety, and high fault tolerance. The online web app has scalable components in the web, app, and database layers. It aims to provide a great user interface while handling many users efficiently.