Interactivity

Interactivity is a hard word to define, tough several have tried.  Some definitions being:
1. "New technology that will change way to shop, play and learn." Newsweek
2. "Huge amount of information available to anyone at the touch of a button."
Rooting from the word Interaction which means, 3.  A style of control and interactive systems exhibit that style.

More opinionated definitions include:

Jerome T. Durlak's A Typology for Interactive Media defined Interactivity as a Prototype. 
This system includes telephone, two way television,

audio conferencing systems, electronic mail, video text, etc.

Rockley Miller defined it as Criteria; a recirocal dialog between the user and system.

Then there is Everette M. Rogers who defines Interactivity as the "capability of new
communication
systems to talk back to user almost like individuals in conversation."

He also breaks this definition down into three different Dimensions, 1 2 and 3 Dimensional,
 to help
 present his 'opinion'.  In this three dimensional step process he shows the viewer that

all media is basically Interactivity it is just at different levels.  The beginning of Interactivity
with the telephone, for example, to dimension 2 which is "teletext" and then dimension 3,

"computer communication via video text."  If Interactivity keeps growing the way it is,
eventually, there will be a fourth dimension.

I personally believe that all these definitions are correct.  Interactivity is blogging, emails,
video chat.  The list goes on.  It is DVRs and channel selection. 

You can order anything fast off line or an Infomertial.  Your cellphone
can have Internet connection and different applications that

are never ending supplies of information.  There are times a commercial is on one channel and
an option button pops up suggesting you to hit select which will then direct you

to another channel that contains more information about that particular product. 
This is all Interactivity.I believe that the new I-phone that allows you to view who you are talking to while you talk to them
is a great example of Interactivity. 

Even with several different definitions, one fact that remains is any of these def can be considered similar
to the one def of New Media.  This is because both
mainly deal with the same things.  Twitter and Facebook, along with I-Phones and just Internet in general,
are different forms or New Media. All these things are Interactivity as well
it's just New Media is Communicating with others and Interactivity a form of how they are communicating.