What is Web Application?
In simple terms, Web Application is a software application that is deployed to a web server. Users can access the application via a web server.
For example , www.facebook.com is a web application. User visits facebook.com in any of the browser and 'Login' page is displayed in the browser. GUI consists of 'Email id' and 'Password' input text fields. When user enters the valid credentials and clicks on 'Login/SignIn' button, if credentials are valid then 'Home' page is displayed.
When user clicks on 'Login' button, the browser makes a request to the web application on the web server to display home page.
Flow: WebBrowser----->sends request to web application----->Web Application---->validates credentials & processes request----->sends a web page as response to web browser----->WebBrowser
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