• The world's most popular Open Source development tools - MySQL, Apache and PHP.
  
  
• Microsofts .NET framework - MSSQL, IIS, ASP.NET
  
  
• JAVA
  
  

Provide a Query Interface - Web Applications provide users with an interface for entering data. The data they enter is usually called a "query" or a "request" because the user-defined data is used to dynamically query or make a request from some service on the web server machine (searching a database, ordering a book, requesting a file).

Transmit User-Defined Query - Once collected, the user-data is sent to a web server

Perform Server Side Processing - The web server processes the user-data using some sort of "middleware".

Massage Data - Processing almost always involves playing with data on the server. The user-defined request specifies how the data should be played with.

Transmit Query Results - The processed data is now returned to the client.

Perform Client Side Processing - Finally, the returned data is displayed to the user. Display might be as simple as interpreting HTML, or as complex as performing calculations, sorting, or other manipulations of the data.