A “rhino-digital interface” is the part of a system that enables the interspheral exchange of information between the sensory organ of the nose and the digital infosphere.

The definition of the term “rhino-digital interface” was proposed within the framework of the “Digital Era Framework”. In this frame of reference, four spheres are described, which can be used to classify interfaces in relation to the type of manifestation of information: The infosphere, which consists of the analog infosphere and the digital infosphere, the cognisphere and the entisphere.

A “rhino-digital interface” can be considered either as a “bio-digital interface” and an “enti-digital interface” or as a “cogni-digital interface”. If the nose is brought into focus as a physical organ, then it is part of the biosphere and thus part of the entisphere. From a functional point of view, on the other hand, a reference to the cognisphere must be taken into account.