So, that's what I mean when we're talking about game elements. The second thing here to talk about in gamification is game design techniques. And the reason we need to talk about that is that games are not just the elements. As I already said, there's partly the visual experience of the game. But more than that, games are not just a jumble of elements that have been stuck together in some haphazard way. Games are things that are designed systematically, thoughtfully, artistically for the purpose of being fun. And, so the things game designers do is not just a matter of pure engineering. There's a lot of engineering involved. There's a lot of algorithms, a lot of technology involved but there's also an artistic experiential side of game design that involves thinking about problems in a certain way. And that involves taking an approach that uses concepts that are common to all forms of design as well as some concepts that are novel and specific to designing these things called games. And here especially I'm talking about video games although some of them relate to all games. That kind of practice is something that like the game elements can be applied outside of games. And some examples of gamification are more focused on the elements and some of them are more focused on the game design modality. And some have elements of both, that's why both are part of the definition.