In Chinese systems, Kung Fu is a general term for older systems, while Wu Shu is a modern competition-oriented sport requiring advanced acrobatic skill. Traditional Kung Fu is often characterized by long elaborate sets of moves, in which combat techniques may not always be obvious. This is the basis for common criticism that Kung Fu is not effective in fighting. The efficiency depends upon how the sets are taught and the amount of sparring in class. Perhaps the best known example of this is the system of Wing Chun.
Most systems contain techniques and sets patterned after the movements and qualities of animals.
The best known is the Shaolin Five Animal system. Also popular are Eagle Claw, Praying Mantis, Tiger and Dragon. There are several important general characteristics of Chinese systems. The movements themselves typically are not based on combat moves, but are performed to enhance and promote health and longevity. These are important aspects without which no system of Kung Fu can be authentic.