These issues apply across all types of media and experiences, because they directly address the phenomena of information overload, information anxiety, media literacy, media immersion, and technological overload--all which need better solutions. The intersection of these issues can be addressed by the process of Information Interaction Design. In other circles, it is called simply Information Design, Information Architecture, or Interaction Design, Instructional Design, or just plain Common Sense.
        Nathan Shedroff - vivid studios

So that means that it's the Interaction designers' job to develop the content, behavior, and appearance of the interaction design. People in this role are directly responsible for ensuring usability, including user performance and satisfaction. They are concerned with critical design issues such as functionality, sequencing, content, and information access, as well as such details as what menus should look like, how forms should be formatted, whether to use a mouse or trackball, and how to ensure consistency across an interface. >>