Properties of a Gesture Language

This chapter deals with the gesture language and its properties. A gesture language is a communication system. Its language depends on its fundamental clarity and its overall coherence. One can apply genetic epistemology of cognition to any gestural system. The developmental stage of formal operations is characterized by the following four properties: Identity (I), Negation (N), Reciprocal (R), and Commutative (identity of groups) (C). The chapter applies some of the concepts from Piaget's concepts of genetic epistomology to the design of a touch-based system. It seems logical to apply some well-accepted concepts of developmental psychology to understand a system. In part, any NUI presents a new world for the user. It is natural, in the sense that it supports skilled and fluid practice and does not require that objects and operations be formalized into abstractions.