Tuesday, July 27, 2010

Accessibility/Universal Access

I recently found a good resource [1] on accessibility from a company called Cimex that says what most designers and UX specialists fail to see – when you design for accessibility you do not cater only for less able users. You are making sure that your content is open and accessible to a variety of people and machines using whatever browser or method they choose.

Now, caring for a variety of people of different physical, cognitive emotional and language background and the methods they choose to use you end up with Universal Access.   

Using traditional interfaces is difficult to achieve the goals of Universal Access. Virtual humans as interfaces hold a high potential of achieving the goals of UA as the modalities (e.g., natural language processing, gestures, facial expressions and others) used in such interfaces are the ones our brains have been trained to understand over thousand of years. Virtual humans can speak several languages with a minimal effort (see the Charamel showroom). Their body and face language can be adjusted easily to highlight the importance of a message. Sign-language can be used to communicate with less-able users (no other interface can currently accomplish that). Accurate simulation of interpersonal scenarios (e.g., a sales scenario) can guarantee that your message gets across as effectively as it would if a real person would speak it.

In my work I did go as far as Universal accessibility by comparing the effects of virtual human interfaces on the cognitive accessibility of information under simulated mobile conditions, using groups of users with different cultural and language background. In order to make the information easier to access, I used a variety of methods found in the VH interfaces (e.g., natural language processing, gestures, interpersonal scenario simulation and others). By making the main functions of your system easier to access you ultimately make the interface easier to use and hence, it was natural to investigate some usability aspects as well (e.g., ease of use, effectiveness, efficiency, user satisfaction, etc). These are all aspects of the user experience (UX), i.e., the quality of experience a person has when interacting with a product. I can not release any more information at this stage, as the necessary publications have not yet been made.

In the future I believe that the existing technologies will merge into two mainstream platforms: a) Robotic assistants from the one and b) software assistants/virtual human interfaces from the other. Accessing the services these systems will offer will be as easy as our daily interactions with other people. The barriers that exist today (cognitive, physical, etc) will become a “thing” of the past.  

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