Interactivity.
Three levels:
1) Noninteractive – when a message is not related to previous messages;
2.)Reactive – when a message is related only to one immediately previous message
3.) Interactive – when a message is related to a number of previous messages and to the relationship between them.
(Liu, Yuping and L. J. Shrum (2002), “What is Interactivity and is it Always Such a Good Thing? Implications of Definition, Person, and Situation for the Influence of Interactivity on Advertising Effectiveness,” Journal of Advertising, 31 (4), p. 53-64. http://www.yupingliu.com/files/papers/liu_shrum_interactivity.pdf.)
The parsing out of the definition and use of the word interactive has become a process of necessity as computational affordance have moved into virtually every products, service, and systems. Interactivity could be considered a byproduct of web based media and computational programming, but “everything is interface (interaction) design” as quoted by Benjamin Bratton media theorist (http://bratton.info/). On a whole when one says I am building an interactive project they are speaking in the realm of computers, interfaces, and programs.
The example of the “interactive” poster series that applies an interaction to communicate the ideas contained with in the imagery can be more directly associated with “reaction”. Although it poses the question of does interaction require computation? Can physicality and reaction with users become the meaning space. Interaction implies that a user has a certain level of control. These options allow for multiple levels of meaning and connection. Depending on the granularity at which anyone looks at a experience everything is accomplished through interaction. Memory, history, content, context, ideas are all inter related.
Since interaction is starting to be parsed out as “related to a number of previous messages and to the relationship between them” then interaction could be defined at the making of meaning. Interaction requires the learned outcomes pulling from context possessed and learned by the user. Interaction can occur with in static media or with in dynamic either way. The goal of interaction is then place in the in between space of information being conveyed and the connections that are produced.
check out thesis website : Marginalia: The Hybrid Textbook

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