![]() You need specialist of each these three layers The server talks to a back-end database management system to exchange data, which, in turn, generates the front-end display of data to the user by server-side rendering of the HTML, CSS and JavaScript. The business logic layer is implemented in a server where we use languages like Ruby, Python, C++, Java or asp.net. Let's look at what is implemented in each of these three layers in more detail. The data access layer which deals with data persistence and storage of data behind the scenes.The business logic layer which is more concerned with data validation and processing the data in order to generate information for the users.The presentation layer, which is concerned with UI related issues and how to present the data to the end user. ![]() The entire development is divided into three layers: Implementation in this approach is a common client-server software architecture pattern. We often hear people talking about the three-tier architecture for web development. This might be implemented in one of several languages. On the other hand, the backend is more concerned with the business logic and the data aspect of a web application. So, we would be using technologies like HTML, CSS and JavaScript to target the end users. This is where the users access the web through the browser. Frontends are about presenting the data to the users. We hear people talking about front end and the back end or sometimes the client side and the server side.
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