Glossary

Glossary

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There are currently 4 names in this directory beginning with the letter D.
Degrees of Freedom
Refers to the number of basic ways an object or user can move in a 3D space. 3 DoF refers to the rotational movement around the x, y and z axes, such as looking left/right, rotating head up/down or turning left/right commonly termed pitch, yaw and roll. 6 DoF adds translational movements along the x, y and z axes, such as moving forward/backward, left/right and up/down.
Digital Twin
A virtual representation of an object or system that ideally spans its complete lifecycle, is updated from real-time data and uses simulation, machine learning and reasoning to help decision-making.
Domain
Delimited Field of Knowledge and Skills.
Duck Test
A colloquial name for a method of testing if a user has reached a state of presence or immersion by monitoring their reaction when threatened by virtual objects.