"Interactive art is a form of installation-based art that involves the spectator in a way that allows the art to achieve its purpose. Some installations achieve this by letting the observer or visitor "walk" in, on, and around them; Some others ask the artist to become part of the artwork.
Works of this kind of art frequently feature computers and sensors to respond to motion, heat, meteorological changes or other types of input their makers programmed them to respond to. Most examples of virtual Internet art and electronic art are highly interactive. Sometimes, visitors are able to navigate through a hypertext environment; some works accept textual or visual input from outside; sometimes an audience can influence the course of a performance or can even participate in it...."
"Interaction design defines the structure and behavior of interactive systems. Interaction Designers strive to create meaningful relationships between people and the products and services that they use, from computers to mobile devices to appliances and beyond. The practice typically centers on "embedding information technology into the ambient social complexities of the physical world.
Interactivity, however, is not limited to technological systems. It can also apply to other types of non-electronic products and services, and even organizations. Also, people have been interacting with each other as long as humans have been a species. Therefore, interaction design can be applied to the development of all solutions (or offerings), such as services and events. Those who design these offerings have, typically, performed interaction design inherently without naming it as such."