A Space Model for 3D User Interface Development

Space deserves a special attention when designing 3D user interfaces. However, many proposed methods rely on simple sketches and/or maps. Besides, those methods usually leave aside the 2D interfaces that may be found in the 3D environment or that surround it. This chapter presents an attempt to formalize 2D and 3D spaces by the definition of a meta-model. This is one of three meta-models that have been defined in three-dimensional user interface development methodology, which is also described here along with some case studies, focusing the description on space.