
26 Virtual Reality: Concepts and Technologies
In this multidisciplinary diagram
5
, we have clarified the concepts of immersion and
interaction. In the perspective of designing a VR device, instead of trying to reproduce
reality as completely as possible, we are interested in optimising the functional I
2
related to the application by analysing and deducing the cognitive and sensorimotor
I
2
to the optimum. It is this innovative approach that we are going to explain (Fuchs
et al., 1999).
Remarks:
• The sensorimotor and cognitive I
2
are interdependent;
• This basically means that functional I
2
are to be determined. They can be evident
in some cases, but in