1.
Web Application Architecture
by Tejaswini Deshpande
WebFanzine Media
http://www.webfanzine.com/
Basics, Components, Design and Development

2.
Web Application
 Types of Software
 Desktop Applications
 Server Softwares
 Plugins
 Embedded Software
 What is a Web Application?
 Is Website a Web Application?

3.
Activity
Share some Popular Websites that you
know

4.
Popular Websites

5.
Activity
Share some Popular Web Applications

6.
Popular Web Applications
 Facebook – the Social Network
 Pixlr – Image Creation, Photo Editing & Effects
 Zamzar – Online File Conversion
 Gmail – Webmail Clients
 bit.ly – Short URL Services
 WolframAlpha – Computational Knowledge
Engine

7.
Activity
Lets list all probable components of a
modern Website

8.
Components of a Website
 Logo
 Navigation
 Search
 Content
 Images &
Multimedia
 Gallery &
 Blog
 Contact Form
 Registration form
 Members only area
 Downloadable files
 Shopping cart

9.
Activity
Lets list all probable components of a
Web App say Facebook

10.
Components of a Web
Application
 Logo
 Sign-up or Log in
 Dashboard
 Navigation
 Notifications
 Search features
 Activity Log
 Statistics
 Various Forms
 Settings
 User Profiles
 Reports

11.
In a most simplified language a full fledged Web Applications consist of three
basic components
Architecture of a Web Application

12.
GUI – Client Side
 The user interface is always rendered on a
browser
 Popular browsers
 Programming languages
 HTML (renders actual content)
 CSS (Beautifies the content)
 Javascript (Add effects, interaction, alter content)

13.
Web Server
 Web servers are computers that deliver Web
pages.
 Web server has an IP address and most of the
times a domain name
 Eg. http://www.webfanzine.com/index.html
 Any computer can be turned into Web Server

14.
Web Server
 Programming languages
 PHP
 ASP.NET
 JAVA
 PERL
 Python
 Ruby on rails

15.
Data Storage
 Server side scripting language can
communicate with database
 Common databases
 MySQL
 SQL (DB2 & Microsoft)
 Microsoft Access
 Oracle

16.
Basic Web Application -
Requirements
 Local Web Server
 A browser
 Basic knowledge of HTML, CSS, Javascript,
PHP and MySQL
 Originality & Licensing ( Never ever copy
others code exactly as it is. Respect other
developers  )
 Online Web Server to deploy the application

17.
Basic Web App – Development
 Idea – Decide what is the purpose of your web
application
 Wireframe – On paper or a rapid prototype
 Create a dedicated folder for your app
 Create separate folders for css, js, images etc
 Create main file – name it index.php

18.
Basic Web App – Development
 The index.php file will be similar to HTML
(.html) file, difference being you can write PHP
code inside that file
 Follow basic structure of HTML file
 After you write HTML for the content that will
be displayed, add CSS to each element as per
the design

19.
Basic Web App – Development
 All CSS will go in separate file say main.css in CSS
folder
 Follow PHP syntax to do any kind of computation or
server side validation.
 In order to fetch or save data to database
 Connect to MySQL database
 Fetch the data in PHP variables or save the data
 Close the connection
 You can display the fetched data by populating the
HTML elements with PHP variables

20.
Basic Web App – Development
 Save this folder (say firstapp) into proper
(www) folder of your local web server
 You can open your application by opening url
like http://localhost/firstapp/ in your browser.
 Let us check the actual mini app for the syntax

21.
Questions ??
“One of the very important characteristics of a
student is to question, only students have the
capability to learn.
http://www.webfanzine.com/

22.
Thank You 
http://www.webfanzine.com/

23.
Helpful Links - Basic
 http://www.w3schools.com/
 http://www.codecademy.com/