Virtual Building definition, (Christiansson 1993): "a formalized digital description of an existing or planned building which can be used to fully simulate and communicate the behavior of the real building in its expected contexts"
- design, build and use the virtual building in a collaborative environment
- interact with the digital building model from idea to demolition with high degree of realism
- simulate the behavior of the final building during erection, use and demolition
- check the performance against requirements on the final building
- support various building processes (from idea to demolition)