– It's in the dot

Why open source ?

Open source software is software for which the source code (the individual building blocks of the software) are available under a software license allowing users to view, use, change and improve the software.

Closed source = vender lock-in

The following image represents how closed source or proprietary software vendors link customers to them (click to enlarge) :

How closed source model works


Open source provides access to the source code. It provides the user with freedom of choice. Let's compare (click to enlarge) :

Comparing proprietary and open source models


The advantages

  • Economics : open source software is usually freely available, whereas proprietary software can carry a hefty pricetag, as well as renewal and additional support fees
  • Stability : because of its openness, open source software is under much more scrutiny, resulting in fewer bugs and improved stability
  • Innovation is not restricted to the knowledge of 1 company at a time : everyone around the world can join in and create innovative products
  • Integration : open source software is easier to integrate with other software


The open source world

Open source software is accepted by large corporations around the world :

  • Over 50% of all Internet servers run on the open source operating system Linux
  • Over 55% of all websites run on open source webserver Apache (another 20% runs on other open source webservers)
  • Some of the largest websites around the world base their entire solution on open source software : Google, Wikipedia, Facebook, Flickr, Youtube, etc.