In Activity Theory: An Introduction for the Writing Classroom, by Donna Kain and Elizabeth Wardle, they talk about how a group of people can get together to achieve a goal and how they it. They say how people use and develop tools to facilitate the activities that they do using tools such as computers and even language. Kain and Wardle also talk about an activity system, which is like a discourse community, but they are always expanding with a lot of emphasis on the future of the system. The six qualities of an activity system are that they are ongoing, object-directed, historically conditioned, dialectically-structured, tool-mediated, and have human interaction. Finally, they explain how the reason for the existence of an activity theory is
