Interaction design (also
called user interface design)
Interaction design concerns itself with the functionality
and behaviour of a physical or digital product. The user acts and the product
reacts in an understandable and expected manner.
The interaction designer needs visual skills in order to express the principles
of feedback, affordance, focus of attention, simplicity and self-evidency.
They have an understanding of the technologies that they are designing for,
and can use authoring languages or tools, such as DHTML or Director, to demonstrate
timing, information presentation and spatial relationships.
In products, interaction designers think about both the physical and on-screen
aspects of the interaction. In websites, they are involved in the application-oriented
and functional aspects, getting down to the details of how inputs and outputs
work. They also think about broader interactions or events, and visualise
this through usage scenarios and storyboards.