
Theoretical and pragmatic approach to virtual reality 31
brain to accept these discrepancies. And only then can you program a VR software
package, not before!
Chronological summary of the design approach:
• Step 1: Determination of functional I
2
;
• Step 2: Determination of the necessary VBPs on the basis of the functional I
2
;
• Step 3: Designing the Behavioural Interfaces on the basis of the VBPs (IBS, meta-
phors with or without substitution, artefacts, stimulated senses and motor
responses);
• Step 4: Designing the BSAs based on the BIs;
• Step 5: Designing the VR software (programming the BSAs, drivers of BIs and
modelling the virtual environment). ...