Making serious applications more engaging by increasing feedback to stimulate action, through the application of principles of Cognitive Psychology and Behaviorism.
Gamification is the use of game design techniques, game thinking and game mechanics to enhance non-game contexts. Typically gamification applies to non-game applications and processes, in order to encourage people to adopt them, or to influence how they are used. Gamification works by making technology more engaging, by encouraging users to engage in desired behaviors, by showing a path to mastery and autonomy, by helping to solve problems and not being a distraction, and by taking advantage of humans' psychological predisposition to engage in gaming.
Questions with the gamification tag regards the user experience of gamification.