• Technology or Systems that digitally facilitates interaction between people or allows for user content creation or manipulation. 

• Software systems supporting users task performance in a collaborative manner. 

• Interactive technology or systems allow for a two-way flow of information through an interface between the user and the technology/ system; the user usually communicates a request for data or action to the technology/ system with the technology/system returning the requested data or result of the action back to the user.

What I find interesting is I use to think or interactive technologies and systems as just technologies but ITS can be entirely mechanical or material. 

Interactive Technology Systems in a Nutshell

• System can be controlled in any way that changes something, physical or digital
  
• An action Happens due to an event
  
• Changing the state of a system changes the output
  

Accessibility

A major part of accessibility is ITS. Making an interactive system that is usable by everyone.

A lot of buildings are interactive. You walk up to the door and it opens, press a button and a lift comes to your floor, etc.

How do you make buildings interactive for everyone?

Technologies, any technology, a website, how do you make this inclusive of all users?

References:

Khosrow-Pour, M. (2018). Encyclopedia of information science and technology(4th ed., Vol. 10). Hershey, PA: IGI Global / Engineering Science Reference. doi:10.4018/978-1-5225-2255-3