In the fields of information science, communication, and industrial design, there is debate over the meaning of Interactivity. In the "contingency view" of interactivity, there are three levels: Noninteractive, when a message is not related to previous messages; Reactive, when a message is related only to one immediately previous message; and Interactive, when a message is related to a number of previous messages and to the relationship between them.Sheizaf Rafaeli defined Interactivity as "an expression of the extent that in a given series of communication exchanges, any third (or later) transmission (or message) is related to the degree to which previous exchanges referred to even earlier transmissions. Rafaeli, 1988
Interactivity is similar to the degree of responsiveness, and is examined as a communication process in which each message is related to the previous messages exchanged, and to the relation of those messages to the messages preceding them.

Interactive Model Railroad - Models completely digital installation built up by students which allow driving one of three model trains with a live Web-cam view of the track. [German, English]
Meta Description: [ Die Entstehung und Inbetriebnahme einer webbasierten Modelleisenbahn. Eine Entwicklung des Instituts Informatik der TU-Freiberg. ]
Interactive Model Railroad from Paris - Choose a train and a destination and go!
The Model Railroad Magic Website - The fun of magic by design, for model railroaders
VRML Interactive Model Railroad - Operate trains on our 3D-railroad simulator. Pick-up your train orders. Head out onto the High Iron. Switch cars. Deliver your lading to urgent customers.
| TWILIGHT: NEW MOON INTERACTIVE TUTORIAL [PT.3 - JACOB] | |
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