System Architecture Web Application
In a web based system we divide the presentation tier into two layers.
System architecture web application. Types of web application architecture legacy html web app. Just above the database is the model layer which often contains business logic and information about the types of data in the database. Using this architecture users make requests through the ui layer which interacts only with the bll. One for the web browser and one for the web server.
The server generates html content and sends it to the client as a full fledged html page. In this type the web page construction logic is replaced by web services and each page on the client. Sometimes this architecture is called web 1 0 since it was the first to appear and currently dominates the sphere of web development. The most widespread web application architecture.
These layers are frequently abbreviated as ui bll business logic layer and dal data access layer. The general concept of web application architecture is in line with the concept of a browser user who triggers an application that is capable of running in multiple websites. The model view controller mvc structure which is the standard software development approach offered by most of the popular web frameworks is clearly a layered architecture. When a user types in a url and taps go the browser will find the internet facing computer the website lives on and requests that particular page.
Single page web app. Web application architecture defines the interactions between applications middleware systems and databases to ensure multiple applications can work together. We ll depict the architecture using a uml deployment diagram with each layer supported by a node. It is the era of minimalism where a single page web app is more popular.
The bll in turn can call the dal for data access requests. Web application architecture is a framework that is comprised of the relationships and interactions between application components such as middleware systems user interfaces and databases. Web application architecture is a mechanism that determines how application components communicate with each other. The three types of web application architecture include single page applications spa.
Let s take a look at the function of each layer in a web based system. The web browser layer is the top most layer of the.