What is the difference between MMA and traditional MA techniques?

For example I heard of a Lyoto Machida who claims to be a Shotokan user but I also heard claims by others that his techniques dont look like Shotokan at all. Do traditional techniques differ from MMA ones?

Source: http://www.mmaforum.com/general-mma-discussion/103420-what-difference-between-mma-traditional-ma-techniques.html

Siyar Bahadurzada Bao Ligao  Josh Barnett  David Baron  Phil Baroni