Black Box is a device, process, or system, whose inputs and outputs are known, but whose internal structure or working is not well, or at all, understood, not necessary to be understood for the job or purpose at hand, or not supposed to be known because of its confidential nature. Black box theories are things defined only in terms of their function. The term black box theory is applied to any field, philosophy and science or otherwise where some inquiry or definition is made into the relations between the appearance of something (exterior/outside). Here specifically the thing’s black box state, related to its characteristics and behaviour within (interior/inner).