Website Development Hierarchy

Basically Web development is divided into client side coding and server side coding. A client side coding covers aspects like layouts and design such as XHTML is executed and stored on a local client in a web browser, then server side coding such as PHP, which covers the website's functionality, security and back end systems. It is not accessible to a local web browser and is executed on a web server and after execution it sent appropriate XHTML to the client.

A website development hierarchy might consist of: -

Client Side Coding

• JavaScript
  
• CSS
• Flash
• XHTML
• Microsoft Silver Light

Server Side Coding

• ASP.NET and MSSQL
• ASP and MSSQL
• PHP and MySQL
• Ruby, e.g. Ruby on Rails
• ColdFusion
• CGI and/or Perl
• Python
• Lotus Domino
• Smalltalk

Web development considers several things into account, like data validation on forms & decontamination of the data, data storing in proper way, unauthorized access of scripts to the hacker for gaining secure information for example login information, email addresses, user ID passwords and private content.

Everything needs to be tested properly before making live to the web for public, though developer are responsible to maintain themselves, it is also the role of server environment on which the scripting languages are running.